1. They would have to sign a letter, where they are promising to spend the rest of their life in the pre 67 borders of Israel, the same would have to apply to their children and grandchildren. 2. They would have to promise to never again dress in an orange T-shirt. That should be fair enough.
Netanyahu at Holocaust memorial ceremony: Nazis slandered Jews before destroying them (Haaretz)
from the article: Each Gaza evacuee family to get NIS 1.5-2 million in compensation