Thanks to a comment by Jim Jackaman on Facebook I have already succumbed to my fierst distraction that isn't in "the plan". I've created a set of 1/2400 STL files covering medievalcogs and galleys on 30mm square bases for use with my "Lord of the Sea" medieval rules. I've put these up as a free download on Wargame Vault for anyone who is interested. There are ten different bases covering small, medium and large cogs, and galleys.
You can find the models here: