Unless I have completely missed it in this post, one very, VERY good source for equipment is KEH Camera in Atlanta, GA. Their web site is:
http://www.keh.com .
They deal in mostly used equipment and their prices are great. They have a very conservative grading scale which errs on the side of caution. If they rate an item as Ex then in all likelihood it is an Ex+.
Their people are knowledgeable and they stand behind what they sell. Give them a try and good luck.