Fixing Player Modells

I used the PES 2019 Player Modell as Base for the PES 6 Kit Model fix.

This is the result:

My target would be to create a blender file with which the PES 2019 Kit textures can be painted onto the PES 6 Kit-Texture directly. That would mean we can use every PES 2019 kit and "transform" it to PES 6 format.

Than the kit could look like this (just a quick and unfinished example):

BUT to finish this project I need to know how to import/ export the skin modell and the boots in blender...