How thin of a deck would you consider as a 'no go'?

My beater '66 hemi block is already .080" shorter than nominal, it needs further milling from some gouges in the deck. Some gorilla tried to pull out the 1/4" dowels with vicegrips & scarred it up. I haven't had the deck sonic'd yet, was just looking for some reference.

Street use, standard head bolts/stud, stock iron heads.