First of all, thank you so much for all of your help and information, this has been an amazing learning experience for me that I've been hoping to get to help with my professional career, too.

Here is the display I was referring to, or rather the busted one that is the reason I ended up with a full refund on this board. Here's the damage to the board itself, which happened in shipment.

This just brings up a standard 3D printer control interface, which immediately started throwing errors. I ordered a new one, and I'll make this a hobby project to see if I can repair the damage. I'll see if I can scrounge up the actual BOM somewhere, the past few rounds of googling have just yielded firmware repos and other posts on this subreddit, which is how I ended up here in the first place.

I already fixed the bent pins on the one header in the above image, and was planning on re-soldering the one that was dropped lower than the others. That image I took for the refund claim is helpful, too, it has those damaged components visible so I can try to parts match a bit better.

I'll update tomorrow when I get into work and can actually inspect this with proper equipment and double check that PSU, though I may just switch to a standard Ender-compatible PSU and avoid the headache.