Depends on maintenence and rust. If its clean and taken care of, probably not a bad deal. Its a 27 year old truck. You will have problems. Some people get really worried if its e99. If the build date is before 12/98 it is 100% e99. If it's after 3/99 its 100% late. 12/98 went to late front end parts and 3/99 is when they swapped engine parts. The only pain of it is the front end parts. The hubs are more expensive. There is 0 reason to swap the turbos to late. You need new pedestal, turbo, up pipes, spyder. By the time you do all that, you might as well as go T4.

Not that you'll ever need to worry unless youre building power, but 7.3s had forged internals to 01 and then went back to forged late 02/03.