I commend your progress on it. That color is exceptional. Mine is factory Marimba Red Poly. I built mine about 20 years ago. It was my second build after being out of the hobby since I was a teenager. My first was the Monogram Buick GSX for a club build. The shallow detail on the emblems is why I went with the photo-etch. It also gives it a more realistic appearance. I didn't have any issues with my chrome parts though. They look as good now as when I built it. I love GTO's and I'll be watching where you take this one. It looks great so far.👍💯😎