To be honest- if i was making another boat i would scratch build the pressure hull myself. After all when the boat is completed the inside is not visible at all, unless you look at the right angle through the lumber holes, and with the torch in your hand. Anything like 88mm gun mount, the conning tower base, anchor mechanism is visible, but not much more. If you consider that gun mount on the YM piece is too low anyway- you dont get much for your money. Only my opinion, after using this prouct.