Questions on buying used truck
 

Hello all! Been a while since I've been on here. Sold my 01 a couple years ago. I've been through cancer treatments and now I'm in remission and ready to enjoy owning a Cummins again. Question is, what should I be on the lookout for when buying used? I'm interested in a 2012 2500 4x4 auto SLT crewcab with about 150k miles asking price is $28995. It has been deleted from what I see but it doesn't have a tuner. Exterior/interior is very clean, it has cloth seats with full console and touchscreen radio with backup camera and a ball in the bed.
Thank you in advance for any help!