Bought some land, now comes a shop!

Why not incorporate the shop into your house? I work in a high end custom cabinet shop and have seen some crazy stuff people have done with their houses. We did a house once that owner could pull his Lambogini right into his house and you could see if from any room in the house. You could eat dinner in the car while you watch the big screen tv, or relax in the hot tub while just a few feet from it. We are doing a house right now that has a basketball court inside of it. Personally I would make better use of that kind of space but everyone has there thing.