Thanks for all discussion and ideas, all.
After cleaning (and still in the process of) this camera, I really don't think outgassing is going to be an issue. This thing is filthy. Black, oily, greasy fudge everywhere inside. It's either outgassing or cigarette tar. I've also found a significant amount of aluminium swarf everywhere.
However, knowing how my tub of moly acts, I do not want it in this camera. My moly grease separates out and the oil will get everywhere.
I've got various other special purpose greases (nlgi 00-3, rubber, silicone, marine, etc) and i'm just going to go with a general purpose, nlgi-2 lithium grease that I know doesn't separate and is reasonably tacky.