If it was mine Id never paint it black, Id polish that set of exhaust tips and bumper,
chrome to a mirror finish, and Id have pulled the fuel tank and sprayed that ,
with a good silver rust preventative automotive paint after sanding it smooth.
obviously its NOT my car and your free to do as you please but generally,
the cleaner, and newer, a car looks ,
and the more well cared for it appears to be,
the more people tend to admire, or value it.
especially if its obviously an antique in many peoples minds,
like that 62 year old chevy, that now hard to find in good condition.