Mileage check is very important because sometimes people that want to sell you the trucks may do some mileage record modification and you may expect to see lower mileage recorder than the actual and ream mileage is.
Try going trough the entire paperwork to see if there is any difference between mileage recorded and the mileage display and also it would be a good idea to go to a straight truck dealership to see maybe they can do background check of the truck.
As the automotive industry advances so does the trucking industry does so it is possible in some cases to read entire data and background check just from the ignition key of the truck. You will simply give your key to the authorized dealership and they will check what is the service, maintenance and all other condition of the truck.
Sounds smart and it is believe me so give them a phone call and check is something like that possible with your truck.
Do a Paper Truck Mechanic Check
It is also important to bring the mechanic with you so that you can do a quick mechanic check of crucial parts of the paper truck. Bringing someone with you who has the expertise to see what are the good and bad sides of the paper truck is a money saving move you can make.