Soul,
I had some parts done by the factory trim shop. I suppose you can take your parts off and ship them, but by the time you finished paying shipping you'd be out lots of money. The parts I ordered door panels, I just ordered the components ie door inserts done in yellow perfed leather. They did it on new insert bodies. Better to keep your original stuff if god forbid you hate the way the new stuff looks and also have your car stripped of bits while you wait for the 6 week turnaround time.
You can't order directly from the factory trim shop, you have to go through a dealer, at the time my dealer parts guy had no knowledge of this (they do now) and so I ordered from hangar111 in UK. By this stage ANY US dealer should now know about trim shop work.
Here's the lotus cars link to the trim shop info. It also includes Mel Broome's email. I suggest you drop him an email first and give him your ideas, he might make some suggestions or other ideas as well.
http://www.grouplotus.com/generic/ge...=12&page_id=40
I think the car with brp interior bits you speak of was in the "saturday service at Southbay thread""