Thanks for the input, gents. For now, I'm going to leave the cheapos on. I can always decide to cut and use stock mounts later if I want. I do like the position the cheapos hold the headlight in more than the stock mounts.
Enzo: Yes, flat black paint. I agree that they would look better shiny. The way they mount together includes a slip-fit on one end though, and I think powder coat would be a bad idea. They offer chrome or silver ones as well, and I specifically wanted black to match the headlight bucket. Maybe I'll end up painting them with the same black paint I used to paint the engine badges. For now though, I have bigger battles so they'll stay like they are!