what page is your rig on? or just repost it
edit: found it. Is it the Sunn/Emperor set up? how much do you want for just the cab?
i wouldn't say your price is incredibly high, but certainly on the higher end of the spectrum. the reissues aren't as desireable as the older models, $1,000 and slightly higher seems to be the common asking price for just the head. add another 400 or 500 for the cab and you're not far off.
With that said, its been a buyers market lately, especially with higher priced items. In my recent experiences, small stuff like pedals have remained fairly consistent in price, but when in comes to amps and higher priced gear, you'll have to sit on it a while to get what you want for it. especially on craigslist.