Stop at a truck stop wash on the way home with it and have them acid wash it.
Original fan went through the rad and now sports an aftermarket fan.
The radiator baffle's are missing.
Not the original heater hoses or clamps.
Get rid of the excess rubber fuel line a route it as original in steel.
The additional lights below the taillights are not original. Could be covered up with original reflectors.
Spring type battery cables?
JTRICHARD is quite right but I feel from what I've been looking at this truck would go for more here in the east.