The paint looks pretty good, except for the scrapes. Maybe just put some matching touch up paint on the worst spots. And you'll never match those unique decals.
I only cleaned up this old Raleigh International. It has half missing decals, and scrapes and scratches. But the paint shined up with just a good cleaner car wax. And the chrome's rust spots disappeared after an oxalic acid soak. I like it this way--it's 35 years old and shows the years of use.