Originally Posted by Frank Alvarez

This is a 1/5th scale model designed by Mr. Manfred Eberhard.

Molds were then produced by one of Germany's finest large scale model builders, Mr. Peter Liebetrau.

In 2007 there were only 7 produced, three went to customers in Europe. Two were shipped to the USA. I along with David Searles from the west coast got those.
One of them destroyed during shipment to a customer, and subsequently rebuilt. No follow on history for that one however.

And the last one went to the fellow representing Austria during the 2010 World Jet Master in Europe.

Snap forward to today's availability, and you have only one choice.

'Airworld' models of Germany, I believe, may still produce the jet? Its been completely redesigned in that the complexity that I faced is no longer the case. Instead of '14' air cylinders to doors, speed brakes, gear, etc. etc. The jet now comes with electric actuators for all of these systems.
You'll have to check with the reps on that.
Let me know if you get one as I would be delighted to ensure your success with it.

Frank