NORTH AMERICAN 40 Sailboat details on sailboatdata.com
I am also looking at this boat!!!
I had a friend in the area go take a look at it last week. Having only "looked" at it he said it looks very well maintained and setup for easy singlehanding or duo atleast.
At 7 feet of draft and 7900#s of ballast it would need to be sturdy and probably is a good cruiser. But I dont know for sure tho since there isnt alot of info out there like you said. There were only 45 built so that might be why.
I am hot for a Morgan and will more than likely go with a 38 simply because of draft concerns. 5' vs 7' makes the ocean a bit bigger.