LA 318 advice

Some 25 years ago I had a 318 rebuilt. All stock but a “RV” cam. The project went away that the engine was intended for, so mounted it in my ‘32 Dodge PU.

I asked a few questions on a site I’m a member of for 10 years, many suggested coming here.

Well I pulled the intake and heads-engine will get taken apart anyways to clean a line it back up) and the deck is off, each side around .010, that and the pistons are .095-.105 in the cylinders.

So here’s my options, spend up for the KB pistons, square and mildly deck the block. My heads are open chamber, rebuilt, and will just keep them.
I figure I could save a few bucks over balancing the rotating assembly and KB pistons,plus some squaring and decking, and compare to a heavy deck cut and run the pistons I have. This would just be deck and intake milling.

No balancing required. That’s a savings I referred to.

So with that in mind, how much can you deck a LA 318, still do manifold milling to get it to line up? .040?, .060, etc.
anyone experience this, or just square up the block, run the taller KB pistons.

Not shooting for 300 HP here, but I just can’t sleep well knowing 8:1 CR ratio is turning the crankshaft. And yes, I live through the neutering of the engines in the ‘70’s. My beloved BBC LS5 was cut 75/80 HP from1970 to the 1971 year.

Thanks.