Nice Damascus! That should make a darn fine upland hammer gun and for a very reasonable price. The weight, dimensions and chokes sound about perfect for such use. The advert doesn't mention if it is rebounding or not (non-rebounders are easier to cock in a hurry). Also, the rib extension has what looks to be a repair(?) but that could be just how it was engraved.

[Linked Image from i.imgur.com]

Don't be afraid to use it.