Would anyone like to create and change the player role module with me?

Let me introduce this module. This module is to change the player character. Similar to 3D. you canrefer to the previous module called Customize and Customize Steve. Because the author has not  updated the higher version. So l want to create one myself. butthis is too difficult.  lf this module is made, it will be very popular. Because pepole are adding city maps. lt will make people feel happy. lt will be a miracle

lf someone is willing to help me, l will be very grateful:)