Being new at both vintage bikes and flipping I am wondering about how best to touch up small chips, scratches and surface rust on bikes for HONEST resale. Customer appeal and resale value vs. time and effort must be balanced. Matching paint (especially metallics) can take a lot of time. So once you've removed the rust & feathered the edges:

• Protect bare metal temporarily with wax or Boeshield, leave touch up or repaint decision to buyer
  
• Coat with clear nail polish or other clear & leave final touch up or repaint decision to the buyer.
  
• Prime and coat with clear nail polish or other clear, " " ".
  
• Prime and touch up with "near enough" finish paint, " " ".
  
• Match paint and charge a premium. I imagine this would only apply to higher end frames.

(Brush application is assumed unless I can find my old airbrush. Did I sell it or...?)