Personally, I'd just paint the frame black than limit my search and/or pay a premium. 2 cents ain't much. No charge.
Did that on the last two builds. Not that big of a deal, but being up there in the wind and bugs and rain and grit the paint tends to deteriorate relatively quickly.
If they start out powdercoated that's one less thing to touch up over time.
Totally vanity -- I get it. But if I'm walking across a parking lot the first thing I see is errant silver, and my brain won't let it go.