I'll send you two tutorials regarding how to do it by yourself, there are two options replace and addon. Replace is replacing existing GTA hairstyles, clothes etc. and addon is adding new numbers to the end of the list of current hairstyles.

♡ replace tutorial - <https://forum.cfx.re/t/how-to-streaming-new-hairstyles-for-characters-step-by-step-for-dummies/1048980>
♡ addon tutorial - <https://forum.cfx.re/t/how-to-stream-clothes-and-props-as-addons-for-mp-freemode-models/3345474>

♡ discord.gg/jagoda