M52-although no one has mentioned it yet, I don't see how you can get to a $450K price point on a 52 ft boat. To be even marginally profitable, you have to have no more than about $300-$325K in the build. Several years ago, along with some clients, all long-time marine industry guys, we were looking at a production monohull trawler, had two, 55; and 65', designed by Bill Crealock, his last designs before he passed away. When we did the costing, no way the 55' could be even built for anything approaching $450K much less sold for that price. We partnered with an established builder in Port Townsend, WA. with years of experience in custom builds There were three major molds for the boat, hull, deck and house, and getting the molds done, plugs cut in one piece on a 5 axis router (an amazing process if you have never seen it!), female molds constructed ran close to $500K alone. Even amortizing that cost, we were looking at around $1.2M build cost for the 55' and around 1.6 for the 65'.
Are you including an electronics package for that price? An average electronics package, at cost, for a 52 footer will run around $35K. Most builders give an electronics allowance of $50-70K on new builds.