The Palestinians have repeatedly asked for the UN to come in and help them. So first Israel agrees to end the occupation. Then the UN sends people to help the Palestinians get their civil infrastructure back into working order (with financial help from the international community). Then, Israel lets the Palestinians concern themselves with how they are going to go about building their country.

Or, if Israel is feeling responsible for the Palestinians, it can ask them what help they need and let them decide for themselves what help they want.