Yeah, I have calipers already and only really need the dementions of the post holes and can then remix one of the free files already out there. I'm not trying to reinvent the wheel lol.
Yes to the adapter on the molex. Technically this kit is designed to relocate your HDD over the mobo to allow fans to be installed over the PSU. Thats cool and all, but 32tb of storage is cooler. (It may, in fact, be hotter once im done )
If you run the entire unique library of around 1045 games as full ~7gb as full ISO you need a 8-10tb HDD just to hold the OX library. I personally have another 1.2tb of retro roms and emulators in my build. I plan to use the rest of the space as onsite backup for my media server. All my important stuff has a cloud backup, but I can't justify payimg to stire ~5tb of movies and music. I haven't been able to justify purchasing another large storage solution recently and this will be a great option. I have seen others share ffmpeg downscaling solutions that they claim have worked but haven't tried any myself yet.