Where to get a tractor Inspected before purchasing it?

I'm looking at a 2016 Freightliner Cascadia 273k miles and I'm having trouble finding someone to inspect it (shops in the area are at least one week out on any service). This is being sold through Arrow Truck Sales and the sales agent informed me that the TA inspected it within the past 2 weeks so it has a fresh DOT inspection on it. They have extended warranties that I'm normally not a fan of but I am considering just to prevent from having a critical failure which could cause me to go out of business. I have financing and should have at least $30k in the bank on my first day working under my own authority. What steps should I take prior to purchasing the tractor? I already have a dry van lined up to purchase and I'm currently just searching for a tractor.

2016 Freightliner Cascadia For Sale – Used Semi Trucks @ Arrow Truck Sales

 

Since posting this I received the DOT inspection report done by the TA. The only issue they listed was one active fault for "Fuel Water Separator Heater Element - Voltage Below Normal or Shorted to Low Source".

 

It has a EPU so not sure if Idle would be much of a issue. it was used by Dollar General previously. I do agree though that the miles seem low for it's age but thought that would be better than a high mileage truck of the same age. Warranty is $10k for the top of the line coverage.

 

I emailed the salesman and hopefully he can give me some answers to this. Bare minimum I'd assume he should be able to give me the engine hours as that's normally displayed on the instrument cluster display.

 

Just ran one and it came back clean. Only one carrier reported to have operated this truck ( Dollar General). It was involved in only one roadside inspection back in June of 2018. Other than that there's nothing listed on there.