I will second that. And sometimes small ships are harder to build than large ships. There's more room to jimmy things around on a large ship and still have it look right. The small Z scale ships might take me three to seven tries to get the hull correct and the superstructure fitted. On larger N scale ships, it's usually the second try that succeeds well enough to continue, with minor changes to future productions--just like real ships, and autos, and train engines. With both sweep and camber (slopes fore and after and side to side) it's much easier to build the superstructures in place, but that leads to nightmares in painting. The ferry has camber at the edges, so the houses were built in place and then masked. And then the deck was masked for any instances of overspray or leakage. On some ships, I've built a mule deck to form the superstructures, but that gets expensive for one-of-a-kind orders. Painting has been, and remains, my largest problem.