I have a Zastava .22 RF bolt action that I am rather fond of. Build quality, workmanship & materials are all very good, and it shoots five shot groups at 50 yards of under 1/2" with several dif brands of inexpensive ammo. It is scoped 4X. Whats not to like?
I have never seen one of their shotguns, but would expect it to built as well as my .22RF You may have found yourself a fair 'deal', but offer them something round first, like two Franklins. Post some pics and tell us more, if you buy it. Curiosity is piqued.
Welcome to the board!