I'm in the process of doing it and have had a carbon fibre look panel made up to sit in front of a piece of perspex. Sorry I don't have a progress picture at the moment.
Has involved a fair amount of cost and mucking around tho'.
Easiest way to do it is to buy a piece of perspex pre-cut from Kev Rowley (unless your in Melbourne in which case I may be able to help), and then just paint it with black paint apart from the bits where the dials go etc. I assume you are running a CA or SR engine? I have emailed you a copy of a picture I had on my hard-drive. Hope this give you some idea.