I'm not sure I would use my mini-home for a winery. Cheese maybe. Definitely cheese. I could see getting a few goats and learning to make a great goat cheese. Maybe a wine cheese like Drunken Goat. I loooove this cheese. Can't afford it often. Maybe, someday.
In my loving on the videos of mini homes I came across this of the man who made a mini home, a winery, his mother in law's home, and taught his son how to build his own. It's a nice video to watch. Enjoy!