They are great starter rifles for someone just getting into predator hunting. They can be very accurate, hopefully the inside of the barrel is in better condition than the outside. Yes they can be scoped, I think Weaver still makes a side mount for them and you can see the screw hole in on of the pictures to mount it. B-Square also makes a side mount for it.
There isn't a lot that you can do with them other than shoot them the way they are and for the condition $150-$200 if the barrel is still good sounds about right.
I killed a lot of critters with this one. More than paid for itself when fox were a $100.

The 222 Rem. is no slouch either. It is my goto coyote hunting round, I shoot it in a model 70, and Sako Vixen for called coyotes and in a custom Savage Model 10 for varmints and targets. It is only slightly less powerful than a 223.