Blinkwatt, why don't you get painted bumperettes?
If you want unpainted ones, try
www.suncoastporsche.com. You can even send them an e-mail, and if they have them can respond with a price quote.
I was going to order the door plugs but decided against it becuase of the potential of the car's alarm going into "sleep mode" and needing to open the door with the key after 5 days or so.