I have to say that for Metal in general, I have not found anything more versatile and awesome than the free CORPSE rig available on the Rig Exchange. It is by Deadlight Studio. We play all the 80s hair metal songs using this. It will also work for Metallica as well (just looking at your avatar)
Just tried this profile...ace! I'm in an 80's hair metla band and fits perfectly..Thanks ToneDeaf !!