Welcome. You are READY. Lots of Mainships in Florida, especially down south. They seem to mostly sport 4- and 6-cylinder Yanmar engines in the never versions, although the 1980s versions seemed to have had some Perkins engines. My 6-cylinder, 315HP yanmar is quite different than the Yanmar 6-cylinder model in the trawler style MSs. Once you have settled on a boat model, you could join boatdiesel.com and subscribe to the engine series you might own to get a good feel for the engine, the single most important piece of equipment aboard outside of your brain.
FROLIC (2005 MainShip 30 Pilot II)
Panama City area