This is a really cool airplane, but the plan is a disaster. Most of the dimensions do not line up from one view to another. The rib drawing doesn’t match the wing drawing, nor does it match the wing saddle on the fuselage. The firewall and bulkhead drawings do not match the fuselage side or top view.
However, don’t let that deter you. This is an affordable kit, it’s a cute airplane, and you should build one. I offer the tail as shown on the plan, or with a Das Ugly Stik style scalloped elevator, which certainly looks cool. You can also get the ribs cut for three channels or four (with ailerons). I’ll cut out the trailing edges (ailerons) with scallops, but you’ll have to sand it to a taper because I can’t cut it out of tapered stock in my laser cutter. Since the bulkheads are so messed up on the plan, I figure the best thing to do is to just build the front top deck with 3/32 or 1/8 balsa sheet glued on, rather than making the removable hatch from card stock as shown. So I cut the bulkheads accordingly, without the overhanging edges. Also, you should note that bulkhead #2 lends itself readily to being drilled for a wing mounting dowel, for a bolt-on wing. And maybe you should glue some balsa slabs together and build a German inline-style cowling and add some phony exhaust pipes for a dummy engine on the front.
Don’t let any of this commentary scare you. If you’ve built a few airplanes you will have no problem with this one. Just stick the pieces together the same way you stick any airplane together, and it will work. For this price, how can you go wrong?