I am just building my first as well. It has taken me what seems like forever, but I have done other projects since I started it. Follow directions and you will be fine. I do recommend that when you start the wing sheeting, to be very careful. It is very thin and can punch through very easily. This applies to the sanding as well, not much there when you think of it. Otherwise, it is great fun to watch it go together. Oh....one thing else, make sure you have a good flat building board when doing the wings.