Oh, one more question, dandelions are ok for Russians to eat, right? Because she kind of went to town on them when we were outside earlier. Sorry for the newbie question, I've been doing research, but it has been less than a day.
This part worries me a bit. Care and space requirements for both species is pretty similar. What is it that you think a DT needs that a russian doesn't need? Or vice versa?
Here are a couple of threads that might help you:
http://www.tortoiseforum.org/threads/russian-tortoise-care-sheet.80698/
http://www.tortoiseforum.org/threads/beginner-mistakes.45180/