1878 Borchardt Sharps .45-70 for Trade in Prescott, Arizona For Sale

I have a xxxx Borchardt Sharps rifle for sale or trade. It is the last guns that were made by the original Christian Sharps Company. They made these for the army and the army did not want them. Most were sold off to smith's who turned them into sporter guns. This is the original as was created by Sharps. It is in .45-70. It does shoot, or did last time I shot it about 20 years ago with a couple low powered BP rounds. On the other side of the stock, there is a piece missing, not seen in the pic. IT has been missing for well over 70 yrs, so is all weathered in.
I am looking for basically Two things, a nice Over Under 12 gu with 24 or 26" barrels. I am looking for a good Sporting Clays gun. I am also considering a nice Benneli or similar gas gun.
If you are interested, I will be in Phoenix this weekend. I need the gun for the weekend after this, so If no trades are done before Sept 1, it goes back in the safe.