Can we get back on track?
Talking to many boat builders all around the world, the consistent comment is that the cost of the hull and deck is minimal, its all in the stuff! The systems, the furniture.
I won't directly identify anyone, because they were talking to me, they were not being interviewed for broadcast. Nevertheless, here are some real comments by real builders of quality yachts (all commonly build multi-million dollar yachts).
From the NZ builder of a very well publicized powerboat passagemaker:
"Eliminate everything you can. Don't start building, or even complete the design, until you can't think or anything else you can eliminate. Simplify! For example, instead of a fuel polishing system, use a day take where the fuel pickup leading to the engine is a half meter off the bottom of the tank. That lets a LOT of junk be in the fuel, yet not make it to the engine. As you know I recently built and launched X for Mr Y for $Z million. I liked the boat, but it had WAY, WAY too much complexity for me. So I built essentially the same boat for me, with only the stuff I need. The result was half the weight, and only 15% the cost!"
From the builder of many Grand Prix yachts here in the USA:
"Glass, vinyl ester, and foam, over a male mold. That's the way to go. Don't spend any time trying to design an easy to build shape -- developable, hard chines, whatever -- it really does not matter at all. Design the boat like you want it, we can build it. The cost for the hull, deck, structure, fully painted inside and out is about $12 a pound. This is for a one-off, and includes all mold work." Yes, that means an 8000 lb hull/deck/structure for less than $100K USD. Then, add in the systems and furniture.
For me, I'm going with a 2-4-6-8-10 boat. That's two people living aboard, four for a weekend, six for dinner, eight for cocktails, 10 knot cruise.
I've been measuring exactly what is actually needed. In other words, I'm doing a "zero based" design. Start with nothing, add in the minimum but what is really needed.
MINIMUM!
Berths: one queen size or thereabouts. Must be truly walk around, as you make the bed every single day, and need to get in and out of bed easily every night even when not at sea. Significant direct and adjustible ventilation, such that trade winds actually blow air onto the pillows. A clear view of the water and horizon from the berth. Everyone else can sleep on settees, air mattresses, whatever.
Clothes storage: Hanging lockers are the way to go, as clothes in drawers gets mildew. Hanging net bags for underwear and socks.
Heads: One. Holding tank is necessary. Standing headroom is necessary. Ventilation!
Showers, Spas, Swimming Pools: One shower with thermostatically controlled hot water. Best if separate compartment from the head. Ventilation!
Vanity Infrastructure: one sink with hot water (shaving). Several small storage compartments. Mirror! Ventilation!
Galley: A stove, oven, microwave, toaster, coffee maker. Freezer, refrigerator. Double SS sink with hot and cold fresh water. Trash compartment. All pan, plate, glass, silverware, etc storage allows drainage, so dishes don't need to be dried but simply put away where they will dry (ventilation!). Also, a clear view of the horizon for at least 180 degrees. It must be comfortable to cook underway. Ventilation!
Dining Room: Table for six. Really, six able to sit around the table and enjoy a meal. Great view required. Ventilation!
Saloon: Someplace to lounge around, perhaps two settees P/S, perhaps some chairs. Might be combined with pilothouse. Great view required. Ventilation!
Pilothouse: 360 degree view, able to see entire length and beam extent of vessel. Easy access to decks P/S, fore and aft. Radar, GPS, VHF, SSB, sat phone. Laptop for most information activity including navigation.
Anchoring equipment: two windlasses, one for bow anchor, one for stern. Both may be forward, use lines to get the one anchor to control the stern.
Active electronic stabilization and autopilot.
Single diesel provides propulsion and electrical generation.
Lots of dinghy storage: probably an inflatable or RIB, and a fun to sail rowboat.
Also, storage for bicycles.
Things that seem not needed:
Satellite TV: More fun to watch sports events from a bar with others yelling too.
Internet: Just use what you would use if backpacking: WiFi and a laptop. Don't even try for high speed internet underway.
A/C: While a nice to have, I have been able to get by without AC, even working on the boat in Panama (few places hotter and more humid than Panama!). Remember, you will be cruising, so you can often wait until it gets cooler!
Carpet: Its a boat! Only surfaces you sit on or sleep on should be soft. Everything else should be hard, waterproof. Use a hose down below to wash the salt away after a rough crossing.
DC only: There are clear advantages to also having AC aboard, so bite the bullet here.