Mainship Boat Search
We, too, were anxious to purchase a Mainship. Our preference was a 39 or 40-ft. with a single engine. We found several online, only to discover that the boats were already under contract after being on the market less than 2 weeks. The Mainship market is very hot right now. We let several boats slip through our fingers because we could not react quickly enough. Ultimately, we found a Mainship 400 which had only been listed for 24 hours and we moved quickly. After contacting the broker, we asked for a video walk-through (face-time) of the boat to save us from flying across country during Covid to do a preliminary inspection. This was a very effective method to "see" the state of the boat and a good broker will share his impressions at the same time.
Good luck with your search, stay diligent, and react quickly to view the boat and put a deposit down to hold it for in-person inspection, sea trial, etc.
Don't know if they're still on the market but during our search in Dec. 2020, we saw some nice looking Mainship 43's with navy hulls in Port Charlotte, FL and Old Saybrook, CT. Again, best of luck.