Congratulations, Sherod, on the VAC Auricle Musicblocks. I was marvelling tonight at my VAC Phi 110, and wondering why the hell I want to sell it. There's very little that could replace the Phi 110 at it's used price, IMO.
The Musicblock 160s, at $8000/pair, ought to be good for that kind of money. The Phi 110 offers more, IMO, since it has triode and ultriode modes, and switchable feedback modes, among other things.
Of course, if Kevin says the Musicblock 160s are the new best thing, then I suppose they are, but they ain't cheap.