Looking at Buying This Truck

[GunRunner]

I am new to this forum and I am also a soon to be new O/O. I am looking at purchasing my first truck and I have found this 2014 Cascadia with 449,177.5 verified miles and 14,300 verified hours (3,753 hours are idle). The truck is a 10 speed with 3.55 rear end. I'm thinking/hoping I can get this truck for around $25,000 (they are asking $33,000) but wanted to get some opinions on a few things to possibly use as bartering chips. The truck will need new rubber all around, I will address the fuel pump immediately, do an EGR tune up, and full fluid change (engine, gear box, and rear end). It looks like the turbo has been replaced and possibly more, plan on calling Cummins in the morning to see if they have any records on it. The frame in the rear has been damaged, would that keep it from passing DOT? Attached is a phot as well as a video of a walk around, if you happen to look at it and would be willing to give thoughts, I would greatly appreciate it. I'm green and I'm trying to learn as much as I can as I go.

https://youtu.be/cWRY9cDdcTA