Wow. That is a great deal in my opinion. I am assuming that when they say ths: "Vessel cannot be used in the fisheries in any capacity including aquaculture." it is only referring to commercial use. 75k for a 45' boat in that shape isn't bad at all.
Vessel was purchased by an environmental company during the NOAA buyback program in the early/mid 90's and converted to a documented research vessel. There is a NOAA mandated statutory NO FISHERIES restriction against the vessel. I have spoken to the high ups at NOAA and this is how it stands, no state, frederal,charter, or aquaculture programs(even though aquaculture is considered farming not a fishery) for this vessel. The market is limited but it is available for construction,salvage,research/survey, recreational/cruiser etc.. The engine was rebuilt soup to nuts in 2010 when it had 11,000hrs, since the rebuild there has only been ~600hrs put on her. She cruises between 11 and 13 @ 2500 to 2600rpm......17wot. She is on the hard at Hingham Shipyard Marina.