I suspect a typo above..... IIRC, you are supposed to mill .0095" from the intake side for every .010" from the deck or main head surface.
And no reason to not use the 1121G head gasket IMHO. .028" thick compressed. Just a few less cc's in the chamber to rob compression....
Be ready to use the RTV at the ends of the intake rather than the original type gaskets. Not any big deal.