How can I recreate/restore small text and graphics on a painted surface?
There is blank decal media which you can print on with an ink jet printer.  It is sold online and at hobby shops which cater to plastic model builders.  Apply them to your clean plastic surface using a wet-on-wet technique.  Then clear coat the entire surface to blend in the decal edges.

Here are some more tips on using decals.

Also, practice repeatedly on a similar piece of plastic before trying this on your restoration.