Hey man glad you like the steering wheel. I got the stock one put on late last night. You may talk to some interior shops. There is a place just west of downtown OKC called Gipsons. They sell all kinds of interior stuff. They could probably tell you what's the best to use.
I hate it when you pull up carpet and find surprises. That's not that bad though. You may also talk to Captkaos he has some patch panels, that I have heard are pretty good quality.
I'll have to run by and take a look at the truck. You've seen my beast in all it's glory!
Keep up the good work man it will start coming together really well!