Do you really need plugins with the finalizer 96k?
This is a master made by me with just the finalizer
http://www.blacksandband.com/Stuff/MasterOla.mp3
is it metal enough?
Pay attention to these:
The normalizer section - you gotta cut the peaks so everything has an almost costant amplitude, normalizing too much will make audible clipping (distortion).
Compressor section - tame the frequencies are jumping, you gotta play with threshold and ratio, once you mastered this you can tweak the expert page of this section (frequencies xover, attack, release etc etc)
Limiter section - my advice is to limit the overall spectrum so you're not going over 0db thus avoid clipping.
I'm not a mastering engineer anyway.