Some things cannot be fixed. I urge you to get a qualified behaviorist (veterinary) to evaluate him. If he is truly unstable, rehoming him is not fair to him or the new home.
hi rick,
have you applied with brat yet? it is www.basenjirescue.org also sometimes breeders get dogs back where their homes just didnt work out. im sure the right dog will come up. im glad you found this forum. welcome!