Looks like a nice car to me and with a little work could be very nice.
In addition to what John has pointed out:
Negatives:
The side coves should be white all the way to the wheel opening.
The speaker grill didn't get a bezel until late in 1959. It looks better with one but..........
Heads appear to have straight across valve cover bolts. Should have staggered bolt pattern until mid 1959. Are the block numbers correct?
The fuel line looks to have been abused over the years. A correct one would be straight with defined bends.
The custom oil fill cap looks out of place on an original looking engine.
Positives:
I like to see the original generator harness like this one. Too many of these have the newer service raplacement installed.
The gen has the original tag, even though in rough shape. I prefer less than perfect original details to perfect repops any day.
The overall look of the car is very correct and original while not appearing over restored. He can drive this car without worrying about getting his stencils dirty.
Panama Yellow is my favorite on '58s.
None of these things are really bad except for engine number if he plans on having it judged. If not this car is a dream driver. Everything mentioned can be corrected while he enjoys the car without taking it off the road for a long time.
Tom