Need some advice

[birddogdoc]

Just purchased a hammer Ithaca NIG 12 from a seller on GI. The seller misrepresented the gun. I asked them several times if both firing pins were present and their reply was most certainly. I picked up the gun today and the left barrel firing pin is absent and the right barrel inside is very pitted. The outside of the gun is incredible. Case color is perfect and so are the twisted barrels. Couple questions... I’ll attach some photos. Do you think the pitting in the right barrel (left barrel is perfect) will prevent this from being shootable and how much would one expect to pay for a firing pin to be made/replaced? Should I just send the gun back?

Thanks...I appreciate your responses.

Shawn