Help With Mark III Tubes

[afxwinter]

I'm trying to get a similar tone to James Hetfield's on the Black Album. Advice on which 2 6l6's, 2 el34's, and 5 12ax7's to go for would be greatly appreciated. Thanks in advance!

 

[afxwinter]

Also curious if I need to get matched pairs, and if I have to worry about any sort of biasing?