no idea.
tell me how to tell and ill go look. or you tell me
as far as carbon deposits go, thats on the average side. seen alot worse, and a few a bit better. its not caked/baked on like some.
have heard this engine running, was perfect, except for a massive big end knock(confirmed, disassembled the engine myself). no valve stem smoke ect.
comes with those 5 pistons and that rod (no end cap).
rod would come in handy if you were to go down the same path i was planning and have some big port rods machined to take the 20v little end.
you could also fit this head and pistons to a 4afe with no mods at all.
head surface looks fine, clean up with a knife blade and use some copper spray with a normal head gasket and i would say it would seal up fine.