I'm not Al but I used used the timing cover gasket to set end play. I bought from several manufactures, I have from .010 to .080..... Cometic, SCE, Mopar, FelPro, SuperPerformance, Mr Gasket, etc

I can't remember who I bought mine from but it was from someone here on moparts probably 12 years ago, it might have been Al..lol

And Jim, you said this isn't a max performance build, but 15:1 and .800 lift cam sounds really close to max NA build..lol looking forward to reading about your build.