Denver used market?

My father recently passed away. He was a bit of an audiophile and had a lot of high end equipment. Among the long list are a set of 4 Quad ESL-2912's which I would love to take home, but have no room for.  I see none of these listed anywhere on the used market - and even though my Dad was a completest and kept all the original packing it seems shipping them would be difficult.

I'm curious how people deal with this. It seems like this would be the best place to list them for sale, but I'm wondering if there are any professionals in the Denver area who might be interested in having a look at his entire system. He ran Tact and NAD digital amps, Quad speakers, HDSPe AES soundcards, etc, etc.

Thanks for any advice.