I got my mirror extenders via Helvet and their Blackbird group. Arrived quickly (considering where they came from) and the price was good. PM him if you need any small BB items...you may be surprised at what they have.
(I would list their site, but don't want to incur the wrath of moderators for plug violations) :cry:
UPDATE---> after some encouragement from a shipmate, here it is!
http://bb.superblackbird.info/viewtopic.php?t=20
I also wanted to thank all the folks who input into that post, including John01XX, which ultimately led to me to enjoy a broader mirror experience.
THanks!