Why not just consign it to a major auction? I am sure that any of the "big boys" would be happy to feature it, and many would offer you a 0% Commission.
I would think you'd get much better exposure that way, as opposed to the B/S/T. Definitely some great collectors over here but speaking from experience, our group tends to be "a bit thrifty" (to put it mildly...)
Magnificent piece
