Nelson Marek 43
Sorry, I may have added to the confusion. My Mauch''s guide has the boat and design team but not the builder. It was my assumption that it was built by Morgan or Morgan div of Catalina. And yes, the NM 43 I gave the specs for above is an aft cockpit boat, not to be confused ... with the Morg 43 CC.
The Morgan 43 CC was built by Catalina, at least the sail plan has "Morgan, a Division of Catalina" printed on it.
By the way, Mauch''s also lists a N/M 46, but no 45. A Morgan 45 is listed in the Morgan section.
So, all that said, *I* am not sure which boat the original poster wishes to discuss?
My best to all.