We've been feeding this cat (not sad!) that comes onto our porch for the past few weeks. It's adopted us and we're strongly considering adopting it. Are there any low cost vet options in Chicago that could give it the tests/vaccines/whatever that it would need to bring it inside? Not looking for a long term vet in this case. We have a diabetic cat who's in remission here and we're most concerned about his safety. Thanks for any help