custom door panels

i figure ill put sound deadener on the inside of the door skins,and plastic right behind the door panels,unless i can find another suitable product to fit behind them.Im gonna be making another set of these door panels for a freind,along with a rear speaker shelf,Fiberglassing the arm rests to be painted smooth and shiny.Trying to figure out how to do a headliner that can be painted.Im wondering if anybody would be interested in buying some of these door panels and speaker shelves.I think i can do a matched set for $400.00,materials are so high now a days.I dont think thats too expensive,considering the cost of repro door panels and speaker shelves.Also,im planning to make some panels for the trunk,to give it a finished,custom look too.What do yall think?