I've been planning on red with silver stripes since I first contemplated ordering a car, in late 2000.
I talked to many people about it, early on, and one thing stuck with me. This one guy, (I'm sorry I can't remember who it was, but I still have the picture of his car..) had a multicolor paint job, gold under red, I think. And he got a major scratch in it on the nose, from a rock or something while driving it.
Be careful about custom painting. When you mix bases and undercoats you end up with very attractive colors, hues, and changes in different lighting and at different angles, but, if you ever have need to re-paint a section from a scratch, accident or some other damage, you are, as they say, SOL. You will have a very difficult time matching. You will probably have to repaint the entire car.
If you're building a trailered show car, then fine, have at it. If you have lots of money, go right ahead. But if you are building a driver, you might want to think about sticking with a single color for the body and a single color for the stripes.
Me? 2000 GM "Magnetic Red" and I'm still not sure about the silver, probably a BMW color, something very bright, maybe "pearly"...
Dave