Creating saves with random information help

[developer_butters]

Hey there, I'm trying to build some kind of program to create randomized save files for my ds/3ds games (as in fully legal game saves with pokemon at various levels based on progression).

I've tried doing this by cloning a save and then using python to try to modify the save via pkhex.

I've also tried creating a c++ program to create and modify .pk files so I could just dump boxes back onto created save files instead. 

Finally, I tried to do a plugin to pkhex that would use the encounter DB to automatically populate the save file. 

Long story short, all of these approaches failed to create actual saves for one reason or another. Is there a plugin for pkhex already that can do what I want, or is there a better approach to do this than the ones I've tried?

Or is it just impossible to do with pkhex automatically and I'll just have to suffer through generating a list and creating pokemon one at a time?