I cut everything to size with a square and a utility knife and mocked it up around my At Mars Specialist head, trimming each panel more as needed. When everything was the right size I taped it together around the head with blue painter's tape. Then I took it off and applied epoxy to the joints on the inside with a popsicle stick. Since the head has roundovers as most do there was plenty of room to have a bead on the inside. In retrospect epoxy was a pain in the ass to work with, but I already had it.
I did the cutout for the handle by making a little template and cut it before final assembly. As it turns out on this amp the handle is centered on the top panel so that made aligning the cutout a little easier.
Anyway, it's not perfect, but not too bad for a first attempt. It fits really tightly and is sturdy enough that the head can sit on top of it. I'm planning to do another for my VHT Special 6 head, so if there's any interest I can document the process.
