Couldn’t stand the suspense after I noticed the dipstick tube on my new core was open and it had been stored outside. Could have been flooded & rusty in which case it’s only a set of donor cases. I pulled the pan and it was pretty gunky but no water, a little clean red fluid hanging out (must have been drained when pulled from a car). Somebody loved it and wasn’t a great wrench- it had a large brass filter installed, all the VB bolts were a little too tight, and one was rounded off some.

Under the valvebody it looks like a nice clean core. Hopefully the output shaft isn’t rusty I won’t be cracking it all the way open until my shop is clean enough to lay it all out on butcher paper.