Primalus

Looks like you forgot to put boot.elf on the root of your SD card.

I've never used a Chromebook before, so I'm not sure what extra files may be added when you copy/delete files form the SD card. That may be causing a problem. I get that you really don't want to install the Homebrew Channel or Riivolution, but that's probably the best way to ensure that everything works. I'll consult some friends online about this (they have a pretty good understanding of this) and see what they have to say about this, though I'm pretty sure that you need to at least install the Homebrew Channel. It's been a few years since I've done this, so sorry if I'm not of much help.

Since an Australian Wii works with European Wii games (and vice versa), you should be fine.

It is possible to have multiple hacks on an SD Card at the same time and use Riivolution, but I wouldn't suggest it. If you want to keep them all on the SD Card, just put them all in the right folder. In Riivolution, make sure to select the hack you want and deselect all other hacks. I'm not sure what happens when you have multiple hacks enabled, but I assume that it's not good. If you are fine with trading them out with your computer, just replace the current hack file with the one that you want. I'd suggest making a folder somewhere in your Documents library and saving all of your hacks and saves there.

What a great design. I saw this a while back and just found it again. I might try modding it to fit a 3DS XL.

I wouldn't think so, since (if I remember correctly) the Wii Mini does not have internet access. The internet is required to be able to install Riivolution

Sometimes it will work, sometimes it won't. It's kinda hit and miss. Sorry!

The game will always take a little while to load. Be sure to check if you disc has any scratches on it. That could cause a problem with the music.

You can play it all on one disc. Just be sure to load up Riivolution if you want to play Newer.