Yeah the 302 and old 4-speed auto are tried and true, reliable and well supported by the aftermarket. The machine work has jumped a ton, that's a shame. It brings the cost up closer to what many late model used engines cost now. A nice well built SBF used to be a $3k or so deal, now that's more like $5k, and more if you opt for higher end heads, or a block etc.
It has made many older used parts more valuable, like a simple used 5.0 engine, various external parts; intake manifolds are crazy high too for example. I have a used RPM II intake that used to cost $350 maybe, now it looks like $500. Stock Cobra intakes used to be under $400, now some are close to $1k. My BBK SSI intake I bought for the heck/curiosity of it was $400 complete, and I figured I might sell it if I couldn't use it. Now that has become my best intake choice, it looks great and should be a little better than any GT40 intake. I gotta ship it to Tom Moss and son to have it ported mildly, and then see how it does on a 347.
I wouldn't want to pay for a lot of the new parts for what they cost now, and how fewer choices there are. 2020 hurt the parts industry a ton, so much is scarce or unavailable, plus much more if you can get it.