Thank you all for all your opinions, very much appreciated! I still dont know what to do or not to do though! Many views here.
It's definitely a rider, not wall art (well yes during the winter). And I'm not selling.
I much like the well used but not abused look it has now. And definitely so, it's only original once.

But I dont want it to rust away of course.

A professional repaint of the top tube, seatstays and a pros touch up for the rest of the bike would be fair to it I think, but I dont have the money for it. We dont have any companies like Cyclart here so I would have to turn to a MC-painter.

So I'm not doing any repaint or touch up myself. Decided.

Im going to stop the rust with WD-40 and a wax job then. I've ordered a can of J.P. Weigles Framesaver also..

But how to stop the rust under the top tube paint? Not doable without removing the paint of course? Maybe this rust will move very very slow now, when the bike is living with me in a warm apartment : ) ? Then just leave it?

What do you think I should do with the spots I opened on the top tube? Nail polish.. or/and a Campagnolo sticker?

And lots of pictures is coming up, all the parts is being cleaned...