There are probably a hundred thousand things I haven't thought of yet. I'm still reading and learning. But I decided to see if I could make a template. I went to Home Depot looking at MDF. I thought I was going to have to buy a whole 4' x 8' sheet. But they had a scrap of 3/4" MDF. I got a piece about 27" x 16" for $0.51 I put my B4F on it and traced around. Cutting this with a keyhole saw. That was getting old fast. So I decided to chop off some of the excess material with a circular saw. Not good for details, but hey. Finally, my room mate found his sabre saw I'd asked him about. Now we're in business. I'll try smoothing the edges with a sander tomorrow.