It appears that Banten, the manufacturing source for these mounts, is in Italy. However their website indicates that they only sell through retailers. They then fail to indicate who their distributors are! I am tempted to sign up as a retailer. Perhaps you can find a local distributor while you are still in Italy? I am looking for sources of both the ball mount and the mid-antenna rail clip (parts 00015 and 00020) online without success. I don't need them until November when I splash Brava again in Antigua. If you find a distributor I will gladly buy them off you when you reach the Caribbean again. Otherwise I need to investigate alternatives.
The Shakespeare mount and (rail clip) that Gary Silver found may have the same size screw threads (1 inch - 14 standard) to fit the base of the Banten 7 meter whip antenna but I will seek confirmation of that. I have brought the broken ball fitting back with me to Massachusetts to attempt to find a match. I'll let you know if I am successful.
I would love to finally meet you and Judy when you get to the Caribbean. Between BeBe's blog and your generous Amel group postings you have both been very inspirational and a major factor in bringing me up to speed.
SM2K #400 Brava
Currently on the hard in Antigua