rockm

"I guess what I'm really concerned about is how much foliage pruning would (or lack thereof) would maximize the trees survival chances, same with the roots too. "

This is a tough question --the answer is a very grey area. It depends on a number of things, like how much root is left, how much top growth you need to leave to maximize growth and support the roots, but balance out the need to mimimize transpiration from the edited rootball. Equal portions of both would probably be a good rule of thumb to start with.

If you can, make the time to get out there and see if you can't convince the owners and dozer operators to help you out. It would be worth your while and the tree's. If they are pushed up, rather than dug up, you will get more viable roots and probably a better shot at survival. Take some of your friends to help move the plants. It sounds like you're going to have root masses that weigh alot.