You've already spent a lot of $$$ and as you say you "cannot afford to keep going to the vet" and blood transfusion "isn't in the budget". Most FeLv cats do not have a long life, so the best thing you can do is make him as comfortable and happy as possible for as long as he's still enjoying life and not in pain. Thanks for trying to get him better. Lots of hugs and kisses and treats for Geeps.
http://www.fabcats.org/cat_group/pol...ents/felv.html