After talking to @lox897 I remembered I forgot to post about my enclosure I got from MasterCho.
So after lots of talk between @MasterCho and I a few months ago, my enclosure was finally made and delivered to me. It’s a fiberglass (planning to buy a carbon fiber one later on) enclosure, and it’s fairly solid and stiff, a little flex when twisting it, but not much at all. I requested matte black, and it looks great in that colour. It’s one of the final pieces in my build, and I couldn’t be more happy with how it turned out. Thanks MasterCho!