There are many many pics of rollpans on s10's to get an idea, if you can find one on a CC post it! Steel or fiberglass are the choices, fiberglass usually bolts on and some steel do also but a welded up steel roll pan, tho more work, looks waaaay better!
also think about boxing in the rear of the frame or a bumper of somesort behind the pan. Im not sure about the laws there but dont be suprised to see blue lights. I got rearended, called the police, and got a ticket for no bumper.. nice.
I think you will have to try another forum. There is no one here running one on a crew cab that I know of.
Given a choice I would choose a bolt in steel roll pan with a license plate recess. Hinge the plate and add a hidden hitch behind it.
I have done that to fullsize in the past and it turned out really nice.
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