This forum got no PM functionality - just saying.
There are a few old farts hanging around here. Might be worth speaking to Blueberry or Britelite for starters, even though they might not be as old-school as you are seemingly looking for (obviously no offence to anyone intended :)
Codetapper might have something to say about cracking, plus he is from the other end of the world. And
Digitale Kultur E.V. might be a good contact for all your information needs, as it is at the core of their mission to spread the word about the demoscene and they are super well connected within the scene (also to really early members like Irata, or groups like The Light Circle).