Hi,
I owned a 1981 44' Atlantic similar to the 47. Yes, it was a Hargrave design. The 44 was essentially identical to the 43 Hatteras Motor Yacht, the difference being the Hatteras was a flush deck and the Atlantic had a step down to the side decks fro the aft deck. On my 44, the portlights were made by the Fuller brush company's maine division( amazing, huh?)
www.fullermarine.com. I was able to get replacement screen for all the ports. The windlass was made by Ideal in CT. While they can repair any problems, very expensive and I replaced mine with Good brand rope/chain windlass. I may have some additional info, so ask away.