So here is what I am thinking of using for our new Galleys & Galleons fantasy game. Almost all of the ships use Heavy Bow Chaser guns since the vessels are modelled with them.
Dwarven Rocket Destroyer
Points 64 Quality 3+ Combat 3
Special Rules
Heavy Bow Chaser Guns, Ironclad, Steam Engine
Assault Cruiser
Points 70 Quality 3+ Combat 3
Special Rules
Corvus, Drilled Soldiers, Ironclad, Steam Engine
Lancer Cruiser
Points 90 Quality 3+ Combat 4
Special Rules
Heavy Bow Chaser Guns, Ironclad, Ramming, Steam Engine
Protector Cruiser
Points 80 Quality 3+ Combat 4
Special Rules
Heavy Bow Chaser Guns, Ironclad, Reinforced Hull, Steam Engine
Dwarven Flagship
Points 104 Quality 3+ Combat 4
Special Rules
Flagship, Heavy Bow Chaser Guns, Ironclad, Steam Engine
Pile of dice 