Thanks All this has been super helpful. So far my list is going to be
Check for wheel locks and key
Check for owners manual
Check/Smell Oil
Check Drive Belt
Check/Smell Power Steering Fluid
Check/Smell Trans Fluid
Check/Smell Coolant
Check CVs for issues
Check Cabin Filter (if it has not maintained well it will be super gross because its overlooked)
Check for leaks on timing covers
Check for leaks around diff covers and CV entry
Check for leaks around oil and trans pan.
Check for Rust while you are under the thing
Check for mods in wheel wells
Check if AC works
Check that all seat functions work.
Check that seat heaters turn on and off
Check Lights
Check tire Tread
Check door lock and window function
Check that both keys work
Check for cracks/chips in windshield
Check 4wd functions
Test drive up to 60mph and check for death wobbles
Slow down from 60mph and check for wheel chatter.
Check that the CAT is still there
Make sure it gets warmed up to temp and the cooling fan engages and keeps it cool.
Short list so far...