Source for Good Electric Components

Thanks guys. I'll look into OE stuff, but more than likely, I'll be building a custom fuse/relay panel like these examples I found online (photos below). I'll also need a switch panel, cutoff switch, etc. It'll be a basic race-type wiring harness with nothing too fancy.

I'll definitely look into the sources listed. Thanks for that.

One more question - What makes "bad" electrical components? For instance, how would I know if a particular wire, fuse block, relay, etc. is worth a ****? I've heard some of the cheap offshore wiring is actually smaller than the listed gauge but with larger insulation to make it look like the correct size. Are there signs to look for to avoid these types of issues?

upload_2021-12-8_18-14-17.png

upload_2021-12-8_18-14-38.png