I think this is a great idea. However, I can't see myself letting go of any of my big boxes. I would entertain trading a Select though. I have the Grachan Moncur (I believe that one is oop?) that I never really warmed up to. If anyone is interested in a trade for another Select, PM me. I'd be interested in The Pacific Piano Trios, The Cooper/Shank, The Art Pepper, The Sidney Bechet, hell there are plenty that interest me, what have you got?
EDIT: FYI, I already own the Cohn, Newman, and Green set..