How are you calculating the 'value of the land'?
Who deternimes the value and where the new borders are to be drawn?
Do family estates get prorated for sentimental and historical value?
What is the conversion rate of coastline and maritime claims to arable land?
Does Israel get to keep the value of settlements that it already holds either "legally" (per Israeli law) or illegally?
Why would Israeli settlers in illegal settlements vacate, and (perhaps more to the point) why would the Israeli state stop backing them when they decided not to leave?
Why would Egypt give up control of an excellent defensive border region to a hostile neighbor for a noncontiguous state that would likely be re-occupied by said state before the treaty ink is dry?