Start from the fact that you can't put such reskined ships into game without permission from the ship owner...
Otherwise it'd be Virtual Sailor.
If only half of the people understood the living hell it is to get one of these vessels into a game, WM, modeling is one thing, but you know what it takes to get permission/blueprints? I mean, I've seen a lot of people propose a vessel or start modeling it, but I don't see people tracking down phone numbers and addresses, making calls or visits to vessel owners, (like I have), which is why most people develop for VS, where almost all of the 'hard' work is omitted.