thanks for thr compliment. Regarding the head, I took a sheet of thin plastic, like such found on figure packaging, traced the holes in Prime's helmet, made eye holes and painted it silver . Then I put another clear sheet under that, glued it, and painted it red. After that, I just fit it into the helmet and glued it. The Headmaster still fits inside.
As for the rifles, hah I am waiting on Renderform rifles to arrive that I pre-ordered awhile back :)