King Cab Bed "Cap"

Hey, does anyone know if there are truck bed "Caps" made for the b2600i shortbed (king cab varieties)
If so, how could I get one?

My buddy and I are going camping over spring break (coming march) and I want to buy one of these for the journey. Though, if anyone lives within ~ 100 miles of St louis Missouri or Cleveland Ohio (or somewhere along the road between the two) and has one that they would be willing to rent out for ~ 2 weeks or so, I'd love to entertain that school of thought as well.

Otherwise, I'm just going to build one.

any small truck cap should work as long as the dimension are close.

I have one in my back yard, but I'm in Atlanta.