Oh wow, those are gonna be big ones. Do you have pens where you would keep the red foot and yellow foot? I would imagine you'd want to keep them away from the big guys given the massive size difference (they're also easier to lose).
I have a red foot and a yellow foot tortoise, both about 10 years old, that I'm looking to find a home for in or around Virginia. They have never had health problems, but I feel that I no longer have the time or space to give them the life they deserve.