That's an excellent job Jim; not sure about type of boat, it depends on what you like. Presumably you would like the engine to be on display so an open launch of some type would be good.Might be worth having a look at the Model Boat drawing collection.
Would you be going for traditional wooden construction or something in fibreglass?
The other choice could be one of the boats that would normally be built from ply…..but made in metal; more fireproof that way!
Let us know what you decide.
Brian