I've listed one of my
Keithley 2700 DMMs for auction on Ebay, with a starting bid of $249 and a buy it now price of $389 (+ shipping)
The 2700 is similar to the Keithley 2000, in that it is a fast precision 6.5-digit DMM with full front-panel controls and connections and support for mux/scanner card for use as an automated data acquisition system. It differs in that the onboard memory is 50x larger than that of the 2000, so it can hold 50,000 readings, it has a real time clock, and it has slots for two of the 77XX series cards (not included).
The one I'm selling is in good condition with wear from use. The VFD is a little dim, but still quite usable under normal indoor lighting conditions. It is missing feet and the tilting bail/carrying handle (available for ~$30 from various sources).
Photos, more details, and sample measurements in the listing:
http://www.ebay.com/itm/111868201700