What to look for when buying a 7.3L Powerstroke

Talking about things I like to check when buying a used 7.3 diesel powerstroke. Not too much to these beyond normal used vehicle stuff making sure stuff works, leaks, cosmetic damage, etc. these trucks tend to be very reliable and many people put 300,000+ on them no issue! Hope this is helpful to any first time diesel buyers or people looking to learn a little more about the 7.3 engines!