roughly the same way i play it. the only thing that i struggle with is that first teleport. the others aren't so bad, as i get the chance to move a moment before swarmed which is enough to play a kite + fussilade.
I'll look into fire/lightening (wasn't sure which of the 2 offered more, since the passive survival was roughly the same. 25% max hp is about a 21% survival increase but not limited vs 20% avoid so it came down to how much defence added). the high defence and clvl lead helps a lot on survival, you don't take many hits at all.
I have the same tele sorc orb switch sitting my my stash. i use shamanka atm since everything dies slow enough i'm not worried about jitans cooldown. it'll be probably a week till i can actually get anything solid done though. 18 credits + finals in a week or two. my amount of playtime i have currently isn't long enough at any one point to fully respec/allocate/farm new cow charms. just occasional nihl runs to pass some time (or a k3k). should probably full socket some nih runes into the staff for buff duration though. i have them just haven't done it . . . that + a 6 nih sharkbaiter chest for prebuff could be very beneficial on kill speed. and if something is dead it's not attacking me