The US Distributor for the TF “variant” is Jim Youngs (Kit Car Builder) brother-in-law. It’s Jim’s wife’s brother. I believe he is in Ohio. I forget his name, but if you e-mail Jim via the http://www.kitcarclub.com website, I’m sure he can hook you up.
When I was interested in building one, 3 years ago at Carlise, they were $17,000 and you had to supply the Miata. Not cheap!
I was impressed with the construction and the room. I actually had to move the seat up one notch!!
It was a solid little ride.