WTB Beretta 680 series 28 gauge barrel to fit 12 gauge frame

Looking to purchase a good used (not new) Beretta 680 series skeet/sporting O/U barrel in 28 gauge to fit 12 gauge frame, would prefer 28 inch fixed skeet/skeet but 28" or 30" with choke tubes may be acceptable. Thank you.

 

Ya, I'm still looking.

 

I'm still looking but about to give up.

 

There is a set for sale in shotgunworld classifieds

 

Well, I'm going to try for a couple more weeks and then give it up. Doesn't seem to be any 28 gauge barrels for sale.

 

What do you think, give it up or keep looking? I'm almost 82 so may not be around to use it if I found one.