I've been wrapping my head around the changes to 8th edition WoC for a few weeks now. Now I have the rule book with all the new items in it its even harder to pick stuff now. So I would like some advice on how to design my WoC characters from some vets.

My old 2000pts build would usually be Lvl 4 Tzeentch on Disc and trimmings
Lvl 2 Tzeentch on Disc and other stuff
Lvl 2 Nurgle or Slaanesh Sorceror on foot

I'm not sure if I should drop my Lvl 4 Sorceror for a Lord or two exalteds. But the basis of what I would like to build my characters around are.

Lvl 4 Tzeentch on Disc
Lvl 2 Tzeentch on Disc
Exalted BSB on Foot or Mounted
Exalted Killer Mounted

Any thoughts on how to equip these guys. I've never taken a BSB before but now it is essential too.