Do you have a picture of yours? I do dislike the glossy finish and have thought about painting it. Though, I set the RGB to bright white to illuminate the interior for the pictures and ordinarily keep it very dim to avoid blinding myself at nighttime, so I can't really see the glossy finish, anyway. Switching to black screws sounds like a great idea.
Just to confirm, you have this same Elecrow 5inch "IPS" display but in blue and your screen displays black when it loses HDMI signal?
My glass panel does fully close with that cooler but it is in slight contact with one of the heatpipes due to the termination flange sticking out. I could safely shave off 1mm without hitting the heatpipe and started to do so but stopped to avoid the copper showing through the nickel plating. It's very close though and ultimately comes down to manufacturing tolerance on those heatpipe flanges; if Scythe just implemented a different termination style or tightened the termination length tolerance, it would fit for everyone.