dont replace the black parts, just get them painted. you could get the mirrors and door handles painted for about $100. no more than $200. also if you are converting completely to a GS and dont already have these, you would have to upgrade the stereo, power options, add a rear hatch cover, rear spoiler, rear wiper, fog lights, alloy wheels (i got mine for sale if you want) and convert the rear drum brakes to rotors.

1995 Eclipse GS - HRC Stage 2 - Retired.
2004 350z Enthusiast / 2008 Nissan Versa SL