Maybe Novostar Winding and Mainsprin grease. Not sure though. I’ll check to see if that’s what’s recommended.
Somehow that reverse engineering makes sense! You’ll be the test for us all so let us know how it goes. Since you know the possible risks involved and want to do this for the challenge then definitely go for it! It’s true what you say. Master those small movements and everything else will be a breeze!
Good luck and keep us posted Paul.