There is the 500 Musuem of Wheels, while it might not be his musuem, I believe it is his cars in there. I don't know who owns it. It is located about 2 blocks from my work and is open on Fridays from 4-7 pm (I think) and Saturdays 9-12. It costs 5 dollars to get in. It is on Ohio street near 15th.
http://www.flickr.com/photos/cvmnrob...7602741813778/
This is a picture of the building.