Alright! I figured out how to reuse a previously removed saber, and have Kreia still have a saber at the beginning of the game without messing the rest of the mod up. Two birds with one rock! Awesome.
Just let her use the old C-22 model( which I'll probably remodel anyway), for 101PER and the Sion cutscenes on the Harbinger..then since Sion cuts her hand off anyway, that saber never makes it off Peragus. She "dropped" it. So she won't have it after that and I restricted it to just her so you can't use it while she does.