Saw this thread and felt bad for you, I hate when my thread goes un-answered.
YOU CAN GET RID OF THE GBA, NES, SNES, GAMECUBE BUT NOT THE N64!
Anyway you can find all emulators here: http://www.wiihacks.com/emulators/77...-consoles.html
That's for main consoles but like he said in the forum, 5th generation's are very buggy, those are Wii64 (N64), WiiSX (PS1), and Yabause Wii (Sega saturn)
For gamecube you can follow this guide: http://www.wiihacks.com/recommended-...-your-wii.html
If you want to keep a disc for with the emulators on it check this out: http://www.wiihacks.com/emulators-do...giantpune.html