Way to go, Donna!

But um . . . you are going to need back up. You have to sleep so you can work. Getting up every 2 hours around the clock will wear on you quickly, and that won't help the babies at all. (not to mention it won't do much for you or your furkids.)

Finding a lactating mom sounds good!

Maybe post on craigslist in your area, the feral cat rescue groups may have a female who can help out.

Oh and check with ALL the vets, not just yours, for a female as well.