I have a CL sorc that i am using for mmbot. I am trying to set it up with the best gear for mf, while still keeping it so it doesn't blow through potions during runs. Any suggestions?

The one I run in hell wears full Tals and a lidless with a perf diamond in it and has a prayer Insight merc. It runs nonstop until i run out of stash space and never burns up all my potions. On the downside thoug she only has 430 or so % MF.