YES, but most are several hours away. I've gotten one price quote around $25,000 from someone coming 5 hours away. I think I can do it myself and save a lot of $$$. Maybe I'm wrong. I need to do more homework.
right now my idea is to pour a concrete pad, use strong tie 6x6 concrete embedded posts and build the side walls myself and order the trusses from the company i linked to above.
of course most of my ideas are revised many many times LOL.
timber frame often isn't 'cheap', especially when dealing with craftsmen and women.
it can be a cost effective way to cover a given area, when designed properly, and designed to play to its strengths.