No worries! And good luck!
Throwing in a little odd advice for the secondhand scene - even if the shops are bad, I've had some good luck with estate sales and cleanouts (where a family or realtor basically opens the home to anyone who'll cary stuff away and save them the trouble and cost of throwing it out). It can feel kinda bad, picking through stuff in that context, but we've saved a bunch of nice old tools and kitchen stuff that way, and the houses generally have everything else you might need for a house. Personally I think the best BIFL stuff is old and made before they really perfected enshitifying their products.
The cleanouts I've been to we found through postings on our local free groups (which I also really recommend) or word of mouth, but I used to know some folks who went to them professionally, looking for merchandise for their own businesses, so they must be advertised somewhere normal people would find them too.
This is kinda fascinating - is there an advantage to using a ton of bike wheels (and accompanying parts) for this rather than four car wheels?
I've found working/fixable laptops, laptop chargers, cables, TVs, monitors, and space heaters to be the easiest things to give away again once I pull them from a dumpster.
Cables and converters and little USB devices like hubs are also pretty easy. Lamps and power strips/extension cords too.
I've only done a few desktops, they went but I don't know if there's the same demand.
RAM and hard drives go a long way towards making the task of fixing laptops easier/cheaper since people often pull those parts before binning them. The time I found a stack of wiped laptop hard drives enabled a ton of free computer rehabs.
As others said, you may need to feel out whether people are going to use your bins as a way to dispose of damaged things they normally have to pay a fine to throw away - my local Free Group recently had a problem with people 'offering up' broken CRT TVs, air conditioners, and even refrigerators without telling the recipient (conveniently passing the burden of the fee and disposal logistics from households that could afford to buy replacements/upgrades to ones that were relying on free groups to get their appliances). Then again, I think I'd watch to see if there's a problem before preemptively trying to lock it down and possibly making the system worse overall.
I've currently got a giant box of various working laptop chargers (a company trashed their entire supply of loaners). I've been thinking about building some kind of outdoor free library (similar to the ones for books) with a bunch of cubbords sorted by brand, but need to figure out a decent location where it can live.
That makes sense to me - the word yacht might be implying too much a certain use case (it's the name of a class of vessel but I think it also says 'rich people toy' on first impression). But house boats have been around for a long time and when they're someone's primary residence they sometimes represent a cheaper model of living, not unlike a mobile home. An airship houseboat is an interesting idea, I think it showed up at the end of Cory Doctorow's Walkaway.
Technology and materials sciences have come a long way since the 1940s. For example, we can probably skip sealing the gasbag with solid rocket fuel. Hydrogen gets better lift than helium, it's not a limited resource with higher-priority medical uses, and doesn't require petroleum-style drilling. It's flammable, as we saw in the past, but with modern engineering, modern materials, non-conductive pressure vessels, emergency release valves, no ignition sources or sparks in proximity, it seems like it can be done pretty safely.
Until recently, I think, modern aviation had been admirably safety-focussed, in everything from engineering to operation. I'm not a fan of the airline industry and especially Boeing's recent shortcuts, but I think solarpunk is very much about picking and choosing which parts of our society to keep and which to reexamine to see if they can be done better. Aviation safety is one of those things our society does know how to do well, and that seems very much worth keeping to me. Overall I trust aviation engineers to find ways to do hydrogen airships safely.
If the device doesn't need to be portable removing the battery could improve safety a bit (and bypass some issues from the damaged USB port).
It looks like it's possible to connect an external power source where the battery normally links up https://www.reddit.com/r/GooglePixel/comments/18404z7/run_pixel_3_without_battery/
Not sure if that's helpful but it might make turning the phone into a reliable embedded device easier?
Also ask around friends and family - in my experience lots of folks keep a couple old machines they no longer need because they don't want to throw them out (or pay extra to throw them out) and once folks know you as the old computer guy you might be surprised at how many people message you to be like 'you want this?' before they throw something out.
And if that doesn't work, there's always free groups like Buy Nothing and Everything is Free online, usually local to your town or city.
Corporations and universities often have ewaste bins but getting access will depend on your circumstances. I find them there, clean them up, and pass them to a local refugee resettlement charity.
Your local recycling center may be accepting volunteers - I've been working with a guy who volunteers at our recycling center and he's been working on setting up a reuse option for all the working laptops that come through. Currently their policy is that all computers must be securely destroyed to protect peoples' information but if he can catch them and get permission to wipe the drives and give them away then he's allowed to do so. He also saves hundreds of TVs and monitors per year - he could do more, tons still get thrown out, but they have some tight space limitations at the center and have already been giving him as much space for storage and organization as they can.
Also proplifting is easy as can be with succulents. You can pick leaves up off the floor around the display and just set them on some dirt at home. Next thing you know you have a new plant.
They're doing their level best.
Super cool that these are actually happening! I read about them a lot while researching modern sail ships but it's hard to tell if new tech like this is really happening until they build it.