Post up pics of the marauder! As for the front plate, being white like mine here's what I did. I went to home depot and bought these white plastic caps for 38 cents.
and here's what they look like on the car, no paint necessary.
The glass roof adds 28 pounds, are you really that concerned with weight savings? Get aftermarket exhaust and get those monster mufflers off and that will offset the weight gain, or take a big dump before race day.