So a lot of PMs that I'm just replying to - sorry for the delay. A lot of questions about how I did my custom rear cowl and seat, so thought I'd share. The original shape and prototype was done with planters foam and fiberglass in my dining room. It served its purpose, but was definitely not a long term solution, so I actually went to a pro for the next step. Spoke with a lot of fabricators, but ended up working with Brian Marshall @ Sinister Seats in Bensonville, IL (Chicago). We worked on a number of iterations and ended up with a great, heavy duty final product, with cowhide and marine-grade stitching that held up beautifully in rain. No affiliation with Brian or SS, but would highly recommend him to do any custom fabricating.