After further research, it seems as if you need NAND permissions as a minimum, which means you need a very minimal softmod(patched IOS 36/TBR), which then would let you run Savegame Manager MOD by Arikado(because GX crashes with some sort of libguiwii problem, something about GUI parent elements, and I can't be bothered to fix it). The other option would be to ES_Identify as the game(think Savegame Extractor by Waninkoko from 2008, but I don't know if that program reloads IOS to 249, or needs NAND permissions[no source, no way of telling]), and then do your save business.
Also on a side note: I saw that DOP-Mii has preliminary code to do savegame extraction/installation, but was last updated over a month ago. I wonder if it's been finished yet?
Input from more knowledgable persons such as Pune or WiiPower would be appreciated.