The Zastava 98's are simply a commercial mauser 98 action. Scope mounts should be readily available in many different configurations to fit them.
They are a pretty decent quality rifle for the money. I own one, have another on order, and have handled and shot several others. The machine work and accuracy are both pretty good. The synthetic stock may not be the nicest, but it could easily be swapped out for any number of different aftermarket stocks available.
The one I have is an older Charles Daly by Zastava that was originally in .243. I had it rechambered to 6mm-06 AI since it is a long action and I don't like short action chamberings in a long action. (the only "con" for me) It feeds perfectly and shoots sub moa.