That's unfortunate and you have my sympathy. It does seem like your husband was sold a lemon. My recommendation would be to bring it to a garage and trade it in for something with a warranty and start fresh. He will lose heavily in the short-term but it sounds like he will suffer this cost should he keep the vehicle and pay for the regular repairs as they pop up.
Trying to sell it privately is another option, but you have to ask yourself would you be happy passing the vehicle and it's problems on to someone else.