nice guide. i've been using a lightning sorc for mfing and key running this ladder. i started with a similar setup to you, but recently i saw a suggestion for another setup, and i've found it works extremely well for me. i can mf anywhere with it, and haven't died once since switching. i'm just offering it as a suggestion/alternative because i was surprised by it's strength. here ya go..
hoto/stormshield
cta/spirit on switch
shako w/ ptopaz
tals armor (w/ ptopaz), ammy, belt
chancies
treks or travs (i use rare boots w/ resists, mf, etc)
dwarfstar + wisp (though i've been using a raven for lack of a wisp) -- swap one for natures peace when running for hate keys
torch, anni, a few skill gcs, FHR and resist sc's
holy freeze merc with infinity ca, eth boneweave fort, and eth bv dream
at lvl 90, she has ~1750 life, 74/75/75/~50 resists, about 22-23k dmg, around 400mf, 49% block, and about half of a free inventory. i know she only has 70fcr and around 20fhr, but now i run baal and nihlathak without dying randomly and losing xp. also, it's not too expensive of a setup, but just make sure to get good gear for your merc.
btw, if you run for hate keys with your setup, i found it necessary to have plenty of fhr so the lizards aren't a problem.
i hope posting all of that in you thread wasn't inappropriate.