Grigg
If the blackberry's come in good this year, I'll freeze 2 gallons to have on hand for this fall or next spring at the homecoming.
As for a gear shop, I can only think of two right now and both are in Missouri.
http://www.mooregear.com/and
http://www.southsidemachine.net/South Side may have bigger gears than you are looking for.
I served my apprinticeship across the tracks at South Side's sister shop.
http://www.fultoniron.net/Don