Hacking How Can I Create Custom Characters for Mario Kart Wii Without 3DS Max?

[whiteglovian]

Hey, so I've figured out how to download mods for MKW and create custom textures, but I have absolutely no clue how to add custom models into MKW. I have Blender, SZS Modifier, KCL Editor, and BRRES Editor, so I'm really confused as to what I need to do without the 3DS Max software.
I'm thinking of adding models from MMD that I created or that I'll give credit for and follow their TOU, I'll possibly even add characters from games like JSRF, Splatoon, or even Project Mirai/Project Diva

 

[banjo2]

A while back, we imported the default Roblox character to MKW. I'm not sure which tools we used, probably Roblox Studio (source), Blender, BRRES Editor, and maybe BrawlBox. Not quite sure about the process, though.