Cool bike, my current project is also a JCH Flightliner, '62 I think (see screen name).
Did you use the original wheels? Mine were a white enamel with black pinstripe and a Montauk coaster brake hub.
Mine is a Red metalic color and I am keeping the original paint with all its battle scars, gouges and rust. I am using the same rear rack as you did, which came off a second JCH Flightliner I got at the same police auction. Paid $1 for one (project bike) and $7 for the other (all original except front wheel tire).
It will also have a flat black sissy bar, white sparkle banana seat, apes off a 60's Rollfast, Schwinn stem, stock white grips, Schwinn 5 spoke mag chainring and a flat black 3 speed Nexus wheelset with IRC Metro II blackwall tires.
I am hoping to have it finished so I can take it to the FBM GHC Halloween GTG.
I look forward to seeing more of these old classics take shape on the site.