I'm looking into building a custom loop system, utilising the new Zen 2 chips. I've decided to go for the 3700x. I'm looking at both the X470 and x570 chipsets, as I'd like to do some overclocking in the future. I'm going for a gray/white/black aesthetic so a mobo that fits within that would be preferred. What good options are there?

I don't see myself taking advantage of PCIe Gen 4, therefore I've looked quite a bit at the X470, although the few I've found cost almost as much as the X570 boards, so if that's the case, why not just go for that instead if you know what I mean.

What specs should I be looking at if I'm building a custom loop machine, with some overclocking potential in the future?

Any help and advice would be appreciated!