As far as I know it will take a long time just to complete the first phase of the deal. By the time Israel gets to withdrawing its troops, they will have completed most of their goals and would likely have withdrawn anyway. Hamas will be almost completely eradicated, particularly their capacity to make war, and the smuggling tunnels will be destroyed. Who will govern Gaza afterwards, good luck to Gazans because I don’t envision any nation will want to send military to act as police. Who will pay for reconstruction of Gaza? Nobody, without ironclad assurances that it won’t just be blown to smithereens again in a few years.
Then they will build the tunnels again. And we will give them the materials they need.