AMF 2100 Imformation
This is probably a long shot but I can see that you''re trying hard to find information. Back when AMF was in the small sailboat business (they also owned Hatteras Yachts for a while)their mainstay was the former Alcort boats - Sunfish & Sailfish. They later added the Puffin and the AMF 2100. Since Sunfish is now part of Vanguard Sailboats in Newport RI. There''s a chance that someone there may have some info about the 2100.