I found some carbon fibre look vinyl tape locally and made some templates for the pattern required to fill the space.... I was in a hurry, so I took the easiest/cheapest route I could find at the time, at the time....
the stuff I used was actually designed for external body graphics and wound up being extremely thin and difficult to work with, I plan on redoing it in a year or so with this 3M stuff, here's a link to a video some company made about the 3M product... definitely better stuff than what I used........ P.S. I was peeking about on your thread earlier, very sweet project you have