- Buy a second kit, cut the rear seat from the interior tub and make it a front bench seat.
- Buy some ProSeal Black RTV (harbor freight) and make a copy of the rear bench seat:
apply some mold release or talcum powder to the seat, apply 3 layers of rtv to the seat .Allow a few hours
for each layer to dry. Then make the copy from resin or 2 part epoxy.
- Check the auction site(EB) - often, revell 65 impala interiors (parts) are for sale , cheap.
Post some pics of your project.