I'm in the middle of building one, and I have to say despite the poor included instructions, it's one of the best kits I've built. The online instructions are far better and have pictures to help with the less-clear steps, but there are no plans. The wood fit is nearly flawless and of excellent quality (contest grade balsa and 5mm lite-ply). I finished framing the fuse and it's just under a pound...not bad for a 90-size wood fuse.

The only thing that bothers me is the sheeted foam cores don't appear to be reinforced and the sheeting is really thin in some spots. For peace of mind, I'm going to put a couple of strips of carbon fiber on the outside of the sheeting (in shallow grooves to remain flush).