If you need help with money, I can see if I can donate a couple dollars to your cause. It may not be much but 10 dollars could go a long way sometimes. :]
I'm terribly sorry that this his happening to you. I believe too that I find it odd for the snake to have taken that long to die of IBD. If the other snake has an RI, then I suspect there was probably a nasty bug or parasite in the group you bought.
Good luck and let us know the results! This information could help us learn a whole lot of what to expect and watch out for. Your doing a fantastic job and taking this very well.