Tom, having a "Yenko" museum as an extension of an already established business is a great idea! I think I know of the perfect candidate for such a project, Fastlane Classic Cars in St. Louis.
www.fastlanecars.com This place has expanded at an incredible rate and the guy who runs it (David Williams) is a muscle car guru through and through. He's always on the look out for a "new idea" and I think would seriously look into a project like you guys have mentioned. His Museum/Sales/resto shop/future restaurant, is a muscle car lovers mecca. Let me know if you need anymore info.