Help With Value Please, 20 Gauge VH

[Pay Dirt]

I've been itching for a sub-gauge Parker, looking at alot of internet offerings, and saw this listing:
http://www.cabelas.com/cabelas/en/co...rarchyId=11657

I realize it's Cabela's, though I'm familiar with the manager of the gun library, B.C. Kinsey, and I trust him.
I'm told this gun is original, solid, and hasn't been abused. Bores are .617 and .619 with constriction of .0020 and .24, listed as IC/Mod in the ad but sems more like Imp Mod/Full. Dimensions seem fairly modern with a good LOP and I like the 28" barrels. No measurements on barrel wall thickness yet.

What is the usual Barrel wall thickness for a 20 gauge, something like .026?

What is the real value of a VH like this? I havn't seen too many for sale with longer barrels and 2 3/4 inch chambers.

I've got a 3 day F.R.R. and have made my best deal at a 10% discount off the asking price. How close am I to real world or stated differently, how close am I to stupid money?

Thank you in advance, as always i'm awed by your collective knowledge
Bobby