I'm picking up a Rev1 tomorrow - it'll probably up for sale by Friday though. I have no need for tube amps but I need to get a new interface and some software before college starts.
I don't necessarily think it's to much as that seems to be about what they go on ebay from what I see, but I won't say how much I paid for mine a couple years ago.
I know yours is an earlier model - but after weeks of posting, I was only able to sell my 6505+ for $600 local pickup. There's just such an abundance of these amps that it's hard to let it go at the price your asking. But good luck!