1) Umm...no...the above poster recommended against doing a suicide fix, which could strip out the threading. I suggested putting on a singlespeed freewheel, which could always be replaced again with a multispeed freewheel.

I would assume the thing is Italian threaded, but since one would want to put a new freewheel on anyways (multi or single) there's really not much issue. You can thread ISO onto Italian, as long as you don't try to go back and forth between the two (slightly different tooth profiles). I don't even know if you can find Italian threaded multispeed freewheels new, so it's not even worth worrying about.

2) Yeah it's Campy. Don't act like actually using the damn thing is a disrespect. There's absolutely nothing wrong with running these SS. Guess what? Lots of people did back then.

3) Did I recommend against overhauling it? What you wrote seems to suggest that, and I don't understand why.

Also, it's not going to take a few hours to overhaul it, even replacing the bearings or axle kit.