I got both my bags and brackets from
http://www.leatherneckjim.com/Some of his bags are from Auburn leather, they make great stuff... have a set of their leather bags I bought from Leatherneck Jim's about 3 years ago for my Harley, no problems with them at all. I have a set of their fake leather ones on the Triumph, I can tell the differnce, but they'll do ok, they were a couple hundred $$ cheaper. Both sets have the same plastic backing, no problems.
When I ordered the EZbrackets for my Speedy, they came with longer bolts.
Mary