Does that look odd?

man, that looks sus AF

4spdRT noted the appearance of what seems to be a hairline crack, and if you look closely it seems to be from a chip and then extending toward the right. so that was either painted over, or that's previous paint poking out-- which could indicate a "rebuild" that got painted without getting properly tanked and cleaned. the headgaskets are painted, so my assumption is that somebody pulled the motor and did a top end in the old rattle bomb rebuild style. which is fine if the rest of the motor is in good health.

or it could be some slag, or some rust that got painted over.

like RRR said, i'd be poking at that before parting with some cash.