Garry's Mod (I really need some help with physics)

[missvoorhees91]

Hey guys! 
I came here because I feel like I can't do anything about it by myself...I'm a huge fan of "Friday the 13th: The Game" and recently I discovered there's a nude model of Tommy Jarvis...But it's SFM model. I literally tried to watch mostly every video I found, but I couldn't do anything about the model's physics and skin attachment to it. I honestly tried hard to do everything right, but I failed and now I'm on my edge...
Help me, please. If you can suggest me anything or offer me some kind of help, I'd be thankful. I'd really love to make some erotic pics of Tommy Jarvis and Victoria Sterling, since I ship them so much.

Thanks a lot.