FeLV + kitty Boots' care fund

Hi y'all. Most of you know the story of how I caught Boots after 24 hours of patience & determination, blood sweat & tears & lots of canned cat food! He was a stray living under my car & our neighbors cars. Boots is so young, too young to be on it's own outside! As soon as Boots came onto my radar, I've been fully committed to helping him/her.
If you follow me on Instagram, you probably know that I suffer from debilitating mental illnesses that keeps me from working. While I have support funds for my pirate cat Willie & pup Martha, I don't have any extra funds for little Boots or the tests/treatments/vaccines he needs. He will need to have several tests performed to make sure he's healthy enough to let around my animals. He also appears to have a kitty cold or upper respiratory infection. And he will need flea treatment as well.
I am taking Boots to its first vet appointment tomorrow, because im concerned with possible diseases/cold/respiratory infection. I would appreciate anything you could donate to help me get this little baby healthy & on the road to a long & healthy life! My vet has given me a written estimate that comes to $600. That's the high end, meaning it could be less. I will use any extra funds to help continue fostering care for Boots. I really truly would appreciate your help! This kitten came into my life for a reason, & I owe it to Boots to give him/her the best chance at a great life. I also have a Paypal account...it's for my Etsy shop, but stil gets directly to me. 
Thanks so much ❤ Kristen & Willie (@piratecatwillie)