Short term mooring might be at Elm Point but I don't know the regulations. You can check with the historic society who I think manages the grounds. You have good weather protection but would use all chain (maybe 5/16) and 30 Lbs plow. The EJ marine might cut you a deal since half the season is over with and I talked to them about the bad image they show with half the slips empty. They did dredge it this spring but more needs to be done and the weeds do turn people away. The other option is Ironton and I do like Irish boat shop for winter storage (been there since 1975 and never a complaint) .
Bye for now John