Friend inherited a bunch of Mopar parts in Minnesota

Blocks, cranks and parts that are together (carbs/distributors/Camshafts) are pretty easy to sell.

Transmissions that are torn apart.... good luck

Iron heads, unless they are specific, like stage maxie casting etc... not much call for them

IMO, price it for a lot, using the easy parts to sell as the base price and give the rest away if you aren't willing to sort it out. Otherwise, just give the small stuff away in one go and hope the next person takes the time to find a home for the loose stuff.