Requirements:
Unity 2022.3.22f1 -https://unity.com/releases/editor/whats-new/2022.3.6
VRChat SDK3.0 or VRC Creator companion - https://vrchat.com/home/download
Latest Poiomi toon shader - https://github.com/poiyomi/PoiyomiToonShader/releases
Blender 4.0+ to open blender file
You may make clothing/color variants of for this avatar and sell it
As long as the base model is not included in your sale, refer to this page instead