Guys, I figured out how to make the Smash 4 saves work using SaveMii Mod and I have update 1.1.7 installed. I installed the two NTSC saves and they both worked for me. Although, Emerl's save has more stuff unlocked so you might want to use that save.
So I started noticing errors when SaveMii Mod was trying to replace all the files (And there are a lot of them!). The size of the save is 50 MB and most of its size comes from the common/texture folder. It contains 99 tex files or slots and most of them remain unused in Emerl's save so it makes no difference if you don't include them as SaveMii Mod only replaces the existing files with the newer ones and the ones that are not included will not be altered.
When you create a brand new save file for Smash 4 and then back it up using SaveMii Mod, you'll find out that all the files in the common/texture folder are unused (I checked the files using Notepad++) so it makes no difference if you don't include the ones that remain unused in Emerl's save. However, Emerl's save has the first 8 slots used (00 through 07) and since I don't know what the files are for I decided to include them since they have data stored in them and I deleted the rest (08 through 98). That is 36 MB of data deleted. And to my surprise it worked!
For some reason SaveMii Mod seemed unable to complete the process when the save was 50 MB of data and now it only replaces 14 MB and it worked for me!
Keep in mind that this might not work for you but if you haven't progressed in Smash 4 that much you might want to give it a try. However, you'll do it at your own risk!