Nice. I think with the ebay case the screen sits in those little notches I can't remember 100% now. It has a port on the back for when using with a Pi which is why the OSR one is so deep. I assume it has the two plates as the backplate holds it all in.
The LEDS on the CSL Elite base are pointless, can't see them with either rim I have
I did read there was going to be a firmware update to disable them but haven't seen it.