i think its pretty easy to do a custom floorboard for your trunk. i mean you already have the shape you need to cut the new piece from your existing floorboard. just get some wood from your local home depo or lowes and cut it to shape according to the original. spray some adhesive to it and lay a layer of trunk carpeting to it and your all done. im also planning to do i fiberglass enclosure in my wheelwell for a sub this summer and im planing on making my own custom floorboard for a stronger support for things in my trunk. im going to have a hole to showcase the subwoofer and add plexiglass to the top of the sub enclosure so nothing fall onto the sub. maybe run some hidden neons to make the plexiglass glow as well. just get creative...