[HELP] Custom clothing sp ver

okay so i read this guide on how to add custom clothes, and i know you have to pledge $15 to be able to have custom clothing.

However reading said guide it made it seem like i could only use files that have a path coming from
mp_m_freemode
is there a way i can use clothing coming from the singleplayer path’s

and an additional question, does anyone know where most of the FiveM multiplayer clothes are located?