UD, Sounds really good!! I have found that if I let my h's hobbies/interests run their course, that eventually he gets bored, distracted, disappointed, or whatever. But obviously PUSHING him to stop will make him want to do it more!
I'm glad the brakes are a good price-car trouble can be very costly and stressful. It's nice to get a break. (No pun intended!)
You are doing great w/your validating, not having expectations, and staying upbeat. You are being a good role model to us!