i dont have any corvette logo stuff yet, too busy doing other things. Centrafuse has been great for me, i'm very happy with it, though i havent played with the new version that much yet. as far as finding a fabricator, contact sickvette from this forum. he is a pro installer and has a vette. he does a lot of stuff for corvette people and has installed a few computers as well.
if you go in the audio forum at www.corvetteforum.com i also wrote up a c5 audio faq with instructions on how to do it yourself as well as anything else you'd need to know about your c5 audio system.