I really don't have a problem with it, as long as he doesn't sell them in the US

However, you may get some nibbles....so if it works out, let me know, and we can do something.
Structurally, I'd suggest a shorter belly pan going to just behind the gear. Then a pipe tunnel can be made using a false floor for a long exhaust. A fulle length pipe tunnel may not be the best option on a composite fuse. Easy yes, but might be a real headache in reality.
Just a thought.
-Mike