Hey wb280, I understand where you're coming from. I don't think I would ever want to undergo a FUT again either! 14 days with staples/sutures in the back of my head and months of a numb feeling, gosh, goosebumps from the memory.
But if you need that many grafts and you can't shave your entire head because of the previous scar, then I think you have to go for a second FUT anyway. Maybe the second time won't be so bad, because you know what to expect... and the result afterwards will be worth it.