Have an opportunity to pick up a crew cab with the 7.3 engine. It is in outstanding condition body wise. Owner reports motor has 50k miles on it and needs o-rings on a couple of injectors. Interior looks really nice. Any issues I should check for before buying this rig?

It has an automatic. I have a 90 ford crew cab in 4wd that has issues. Was thinking I could swap the front ends out? Maybe even my manual transmission? Any thoughts?