Good day, Gentlemen & Ladies. Long time truck owner, first time considering diesel. Looking to purchase a 03’ F250 4x4 Crew with the 6.0 diesel, which has recently been Bulletproofed by a reputable Diesel shop. She’s only got 180k on it and he’s recently replaced: egr, new turbo, upgraded oil cooler, inter cooler, and some couplings, High pressure oil pump, Injectors. New ICO valve & IPR, gaskets/seals, scan gauge 2 and oil change. Just need to know if this Bulletproofing really works?? Grew up around diesel and know if taken care of and driven properly, these motors can last a million miles. I don’t have the extra cash to be dumping into a truck that may only last another 50-100k. Any advice is truly appreciated.