Just noticed that the render shows a non-standard 60% case. I understand now why you're recommending a low-profile case.....
Since the plate is going to be exposed in those two corners, do you have any photos or examples of the aluminum and stainless options? I think I saw here previously you said the plates would be silver. Is that just the aluminum one or stainless too? Also when you say silver, do you mean silver anodized or that the plate is just raw aluminum or raw stainless both of which would be described as "silver"?
I liked the idea of the heavier brass plate but since it's going to be completely exposed in the corners I think I'm going to have to re-consider going with one of the other options...
Any chance of getting another render of what this will look like with an actual low profile case? The current render is kind of misleading as the final product isn't going to look like that at all since you're showing a normal profile case with the bottom corners filled in...