2012 ISX 12L

[18Charlie]

Hello folks, I am a heavy equipment mechanic contractor. I am currently looking to replace my old service truck with a new to me used 2012 Pete. It has a 12 liter ISX in it. The price is right for todays market. But the engine has 25k hours and 490k miles. It’s priced fair enough I can do a in frame and still come out ahead. I already have a oil sample I am Waiting for the results. I have very little experience with the 12L ISX. Are there any concerns with this generation of engine other than ensuring the EGR stays in good working order?