Heres a Fred Durst Skin i made for Gta IV, Its my first skin so it might be not great but i think turned out decent for what it is. I hope you like it!

for the installation you will need Openiv, you will also have enable edit mode
then just drag and drop the m_y_street_01_p.wdd" into Auto IV\GTAIV\pc\models\cdimages\pedprops.img\

the "m_y_street_01.wtd" Comes in GTAIV\pc\models\cdimages\componentpeds.img\

Then when you are in the game you will also Need a Trainer, i recommend zolikas Trainer (https://www.gtainside.de/gta4/trainers/140593-zolika1351-s-trainer-23-09-18-2-rewritten/) then you go to spawn and Player model, then you search for m_y_street_01 and when you have you go to clothes and go to suse and then press numpad 6 to remove a weird cap he wearing, final step, you go go to prop model and search by head for the red cap and then you can Play as Fred Durst! (If you dont want the Limp Bizkit jacket or his Cap you can customize him in the clothes section in the Trainer just like you want)