If you can't drift the existing rear site on your '95, and you should be, that's just about your only option unless you want to drill some holes.
Check Marble's Outdoors to make sure, but I know they have some tang sights, I just can't recall if they require tapping any holes on the older models. Otherwise you can get a Lyman 21 adjustable peep sight which was top end sight that came on the 95's originally. Buffalo Arms is doing reproductions now. Problem is the last time I checked they wanted something on the order of $250 for it. I'm pretty sure that it used existing screw holes, but I could be wrong. Could be that they drilled and tapped them back in the day as well. Otherwise, welcome to the same boat as all other '95 owners.
However, with a brass drift, you should be able to drift your existing rear sight.