I was considering replacing with those Ikea trolley wheels they do, but I don’t really need to move it ever. Might swap for the shelf with the metal legs instead.
The wiring at the back is a holy hell of a nightmare. Not sure what to do with that, as I do a lot of swapping gear around.
If you don’t need to move it then just get an extra pair of legs, I went for the shorter ones, got two at either end and two in the middle, dont fancy it caving in in the middle and crushing all my vinyl.
If I were you, just buy loads of vinyl, once the shelves are full you won’t be able to see all the cables.
Either that, or cable tie the stuff that is permanent, and get cables that are just the right length for the stuff you swap out. that way you don’t have loads trailing everywhere.
Wall mounts are just some Hi-fi ones I had lying around. Not even sure they’re branded. You just have to make sure the things are screwed into the wall properly.