Victory By Any Means: Fire As She Bears! Edition is exactly the thing you're looking for. It's an adaptation of a campaign system for spaceship battles, and there are a couple of spots where that's obvious, but it's set up to run campaigns from the AoS period. Here's the link: http://www.wargamevault.com/product/...rs_id=586&it=1

There's also a free supplement for a 1793 Carribean campaign, which also gives a taste of what the rule system is like: http://www.wargamevault.com/product/...cturers_id=586