2001 5.9 Magnum questions

I have a lead on a 2001 5.9 Magnum motor with 118k miles for $600. Curious what sort of checklist you would recommend to me before going to take a look at it. Came out of a 2001 Ram

It would most likely be a rebuilt project just for peace of mind. Also would be my first engine rebuilt but I have a machine shop right down the street that seems to have good reviews and mainly focuses on older muscle cars.

Any advice would be greatly appreciated! Y'all are the best.