Madone 5.2 Cost Estimate Please

A little over 2 years ago a friend at work bought a Madone 5.2. He never got the bug and it's been sitting. I'm hoping I can get a good idea of it's value. I’ve googled it and the average prices are around 3K. Since it’s a couple years old, would that price still hold? Also it’s a 62cm, so is there a large demand for such a large frame?
Madone 5.2
62cm huge
Full Ultegra Compance 52/39
Look Keo pedals
Bonte Race Lites
112 miles on the odo.
Assume standard out of the box gearing
Metalic Blue
It's super clean and hardly ridden.