I got started on the lower body planking and let me tell you that's a bitch and a half!
What you see in the picture took nearly two hours. Not many straight lines on each panel...
I finally got a technique that seems to work, but don't look too closely at the joints of the first few panels, they are not so nice. Scissors against the grain, sharp knife with, sanding block to finish. Will definitely need another plank for the sides.
I also made the UC and CS mounts. I added a balsa strip to increase the gluing surface and ensure that the tubes are straight. Only need to wrap them and secure with epoxy.