Was wondering the best way to make fiberglass door panels, dash, center console, sub enclosure, amp rack. Foam and fiberglass mat? wood? PVC Sheets? Or should I use polyester fabric? on door panels I would like to keep stock door handle and stock clips. Would also like to use stock mounting for dash and use stock a/c vents would like to put screen in pass. side. Would like to put scrreen and sub in center console and form that to the floor. The box I want to put under the back seat, plan on lifting seat a little bit, but want to form to the floor. Also would like to form amp rack behind rear seat to the back of the cab. Vehicle is a 1996 chevy k1500 ext cab, I am new to fiberglass but good a bodywork any help would be greatly appreciated.