Thanks for the tips,
I used to help at a VW dealership. I've cleaned off a lot of Cosmoline.
In the absence of Cosmoline, I cleaned the two best cams, an rc315 and a stock low mile F, brushed them with motor oil and dropped them each into an oily sock, then into a ziplock bag.
I also checked the Engle J cam from the stroker motor, it was on the engine stand already wrapped in oiled brown paper, I bagged it too.