There are many in my area that have been worked hard and can be bought for next to scrap prices. But if you didnt pay alot and the shortblock is sound it surly is seasoned well but not a bad thing.

You might run the heads and other parts on CL cheap before sending them to the metal yard.

The trans is good for parts, I thing the main case is like most 727-s and it might have some good parts in it if not worked too hard.

Just like with anything else if it ran coolant vs water most its life is a plus.

None the less with folks wanting crazy money for even a block if you bought it cheap your ahead in the end as most just cant past the stigma of buying an industrial motor to use as a base core.

Im a bit surprised to see a auto hooked to it. What year is it?

I would mag everything your going to reuse.

If you rip it apart soon, post further on how things look wear and tear wise.