Hey wizards!

I've decided that I would like to farm demonic essences. I think crafting is super fun. It's like gambling, addicting. So I just want to be able to farm essences as fast as possible and I believe CM is better for this rather than Archon.

So, if I could get your help I would greatly appreciate it!
-What is the best current CM build?
-What kind of CHC, CHD, IAS do I need?
-What gear should I change, what gear can I keep using?

Thanks so much everyone!