Are your M22s v2? If so then you should be good to get the M60s, there is not much difference from what I can remember about the M60 sound and the M22v2. My V1s are more forward so the M80s were a better fit for my prefered sound. I think those M60s at that price is a pretty good deal although I would certainly offer much less, like $600. To me anything used should be about half price.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70