How deep is your sailing experience? Might be you'd only need a few pointers about some of the differences (you can go direct from point A to point B, you can make way when there's no wind
, if you gain an engine docking
might be easier, etc.).
If it's just stuff like that, most active training captains could probably fix you right up.
Or if you gain equipment
-- ACs if you've had none before, more engines, whatever -- that's maybe more about maintenance
tips. Still, not difficult to solve...
There is a trawlerform.com, there's the annual Trawler
Fests, many of the trawler
brands have owners groups...