From various reviews, I'd agree with the advice to try to go for the III's used if at all possible. There's a review of the II's in a recent The Absolute Sound.
Dunlavy SC IIs
I'm considering an upgrade from Meadowlark Kestrel Hot Rods, and the Dunlavys were suggested to me as an alternative with the greater resolving power that I seek. Currently using Linn monoblocks biwired to the Kestrels with Tara Master Gen2. What is the experience out there with the SC IIs specifically? My budget is about 2.5K. Thanks, John