It'd have to be built in carbon/kevlar/epoxy because of all the compound curves. So that means building a plug, and a mould and a vacuum system so it's not a realistic home DIY project. Anyhow, it's only my idea of the ultimate, 'edgy' F16 hull shape. The hydrostatics actually look pretty good but I think it'd be really difficult to sail and the crew weight and position would be hyper-critical.