As much as I love Platinum, it is a no no for me for a PAM case. For PAM's the best would be Titanium or Panerai Composite. I bet OP would have chosen these if they existed during that era.
Yes, you are correct in what the market says, but you need to understand also that I don't play the market. I am more concerned about the real passion that should be due to these precious pieces, and let me give you a dilemma, say what if OP were to release another novelty, that is EXACTLY like the 127, dial, size, material,you name it all, but houses say a genuine Rolex, a beautiful Minerva, a to-die-for Angelus or even one of their new in-house (P. 2002/7 works really well, as i can attest with both my 339 and 341),AND even release it in lesser numbers, in this case, you sure the 127 is going to be hot anymore? I say no.
I am glad to hear though YOUR personal choice is a good one.
Ciao
Stephen