Re: Best MF places NM
I suggest not waste resources with rolling up a 35% Spirit as long as you cannot do better than MFing in nightmare. Rich guys do it because they are too lazy to collect and mule the runes themselves and to sell the result on a market which is not available for you - because it involves obscenely high prices. If you are poor, then do what they don't want to bother for - and let them pay for it. The more the payment is like a trinket for them, the better for you, as they will part of it more easily then.
If you really need 35% (e.g. to reach a certain breakpoint), better sell the runes and buy one, that's cheaper on average and it involves less randomness. Maybe you roll up one yourself the very next time, but chances are high that you won't. A bird in your habd is better than 2 in the bush. I for myself only reroll as many Spirits as I can find Hel runes while selling all the rest.
In general, you should concentrate on items with high preformance/price ratios first and later buy the other stuff. Cheap and good MF sorc gear: Tarnhelm/ptopaz helm, Spirit sword with average FCR/Ali Baba/Wizardspike/Occy, Lidless, Viper/Skuller's/Wealth/ptopaz armor, Goldwrap, rare boots, average Nagelrings
Later (sorc): Tal's set (rare jewel with something useful in the orb, ptopazes in helm and armor), 35% Spirit, 2x 30% Nagelring, Magefists, Wartravellers, Ali Baba+Rhyme in the switch, skillers+gheeds+torch+anni+mf charms+res charms in the inventory.