Always wanted to build an upscale Fat Boy, and Polecat's 5.5" Fat Man is a good kit to do it with. The kit comes with a fiberglass nose cone, pre-glassed body tube (looks like LOC 5.5"), bevelled fins, 2 CRs, 54mm engine tube, plus some other hardware and instructions. Flier supplies chute. A good deal at $99. The very wide body is ideal for clusters, 24mm motors are economical and 19x of these fit well in a 5.5" airframe, so that is what I am going to do. Robert DeHate built a nice 10" Polecat Fat Man, which had a slide out motor mount. Had a nice flight at CMASS and then went up on a P motor at LDRS which CATO'ed and took the rocket with it.