Jags,
I know rather than a complete bike, you ordered the frame and then built it up with a mix of top-notch MTB and road components, XT and Dura-Ace with Paul's cantilever brakes, dual Tubus racks, etc.
It is stunning.
Do you have some idea of the mileage you've put on it in total? And how old it is? Those could affect price to a degree.
Best,
Dan.