If you want to play missions like "Pulling Favors" and replace Tonya with the mod, use the "Mission Friendly" YMT file, otherwise the game will crash due to the amount of custom parts.

If you are not replacing a mission ped, use the one from "Complete Customization", so you can have all the custom parts when using a trainer. 

I recommend using the Add-on version if you just want to use it as a player model.