Well, it's hard to tell for sure. It looks to me like it's a solid piece, not like the adel clamps
Here's a bigger picture, a little closer up, from the side (unfortunately, there's not really any build pics of that particular part, though I did put an email out to the builder for a little more info if possible).

It also looks like heavier stock than could be easily "bent" without some proper equipment, but then, I'm no metal worker, so maybe it wouldn't be too tough to make em myself....
@garnerb350 Yeah, don't really like the idea of painted plastic, but...
I do have some scrap brass sheet, I might give your idea a whirl. I won't need but maybe 5-8 clips.