A good idea, indeed...
However, I imagine how would it be to visit such museum... To visit a Fligh or Car Museum is complicated [people have to walk lond distances... ] imagine it on a ship... Perhaps a small car drive then throug the otside os the ship... and people can only watch... :-(
I suggest start creating more hotels, like Queen Mary or Gil Eannes [in Viana do Castelo, Portugal]... This way, they would still be usefull, wich doesn't happen in a museum, where it lays "empty" for years...
Regards! :-D