Weapon Hack

I was wondering if someone could hack this head model:
http://www.garrysmod.org/downloads/?a=view&id=71712 ( there’s a picture at that page )
onto the grenade view model from Half-life 2

To a end result something like this… ( minus the red arm skin )

http://img710.imageshack.us/img710/414/brickbatcrematorhead.png

Thanks in advance.

I know someone knows this.