good work lyle!
you really are lucky to have a vet in your area that goes above and beyond to try to help out the cause. if/when i run into a issue with one of the cats my only option for a lower cost treatment is to have my local animal control officer bring it to the vet. if she brings it in they don't charge any doctor fees and will always provide "expired" meds at no charge. problem is that usually this type of situation seems to arise after hours or on holidays. i have had some luck with some of the vets as far as waiving the doctor fees or "forgetting" to write up a test when i have brought one in myself since it is a feral cat.
"In studying the traits and dispositions of the so-called lower animals, and contrasting them with man's, I find the result humiliating to me."