You have a 4 yr old neutered (heads up NOT A STUD) male, no health testing on parents, his papers mean diddly squat since he is a pet, and you want about $200 bucks less for this PET as someone can get for a well bred, health tested puppy? Okay then.
Let me give you a few suggestions.
1. If you can, keep this dog and find time to run him early in morning and night. He'll enjoy your exercising him more than he ever did playing in a yard alone.
2. If you cannot keep him, the contact either the BREEDER (unless that his who abused him?) or place him with BRAT and let them find him a wonderful home.
You aren't likely going to recoup $600 vet bills. That is just part of having a pet. Most rescues have wonderful Basenjis, equally up to date on shots and neutered, for half of that or less.
I applaud that you want a good home for him, btw. It is obvious you want what is best, but the price just floored me.
First of all,
Your tone and rudeness is so uncalled for and honestly a short "you may want to change your asking price" would safice.
Second of all, I've been waiting on BRAT for a week now.
So anyway, thanks for the advice even if you did come off a little um, abrupt.