There is a shop right near beltway 8 and highway 290. They used to do only Corvettes but have now expanded to other cars as well. I took my pickup there to get an estimate and saw some pics of awesome custom jobs on the walls. I wish I could remember the name but it's been about 4 months ago. If I can find the quote I'll shoot you the name. You might be able to look in the phone book and find them.
P.S. I thought Texas was suppossed to have all the wicked vettes. If that's true, who's doing all the work?