I have mine dry fitted and ready for glueing and west coating. All the cutting, milling ect done in one good evenings work (meaning I actually worked and didnt drink beer). Cost so far: 9.00 for the prints 40.00 for the wood. I use 5 and 7 ply... the HomeDepot wood will work at about 20 bucks. Prop shaft and impeller: 12.00 Waterproof servo: 29.00