G.M. used to stack steel shim head gaskets on the 409's in 1962 to get compression down to one that would like pump gas...........lowered it to 11.5 - 1 as I recall.
Back when Fred Flintstone moved his car through the courtesy fo his two feet.
If I was building a Hemi , I don't know that 250.00 for a set of head gaskets would be unexpected.
I'm all for saving money , but using a bandaid to fix something critical just seems wrong.