Hey, Fellow Bostonian here also getting into a top end rebuild... there's a place in Plymouth that advertises in the motorcycle section of craigslist:
Coating Bikes (plymouth mass)
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Reply to: sale-639520238@craigslist.org
Date: 2008-04-12, 8:22AM EDT
are you looking for a nice finish on your parts would you like to get them powder coating well with low over head we can give you a great price take a look at our web page and give us a call
www.lbcustomfab.com or 774 454 4701
Cheers, let's talk gaskets sometime.
Location: plymouth mass