[Carriage Hill]

http://cgfordparts.com/wwwsectionfiles/cg_cat3_interior_headliner.html

[Yosemitest]

Thanks. that's cheaper than LMC.
We've made them before out of thin plywood and upholstery, and that usually hold up better than cardboard, with those old work trucks that have, long ago, had the door weatherstripping rotted out of them.