Where did you download the plans? The ones I posted in this thread had an error where the labeling on the nacelle boxes was wrong. I've updated it now, but you may have used those plans before the error was fixed. The green arrows were supposed to point towards the wingtips. As for skin 1, I'll make the nacelle box longer. I was designing it to work with some spinners, and I totally forgot about prop clearance!
The tail does need some reinforcement, I thought that the BBQ skewers on the front would be enough, but. I think I'll add a slot for reinforcement of some kind. In the next version of plans I hope to fix all of these things, and hopefully have a polished plane!
I can't thank you enough for building this plane, especially since nobody has built it before. I'm glad most parts worked out, and I'm sorry if some things didn't, but that's an amazing looking plane you have there! I'd love to see more pictures, especially if you paint it! Good luck on the maiden!