Hello Nick and welcome to the less frenetic world of model boating. 
It might appear that our illustrious membership are ignoring you but this is not the case as we like to carefully consider our answers before putting finger to keyboard…..well thats my reason for explaining what is otherwise bad manners.
What size of boat do you wish to build and do you intended to sail it or make it as a static display?
From your discription I presume that you wish to construct an armed trawler?
Paul