Err. Uhm. Orb/TK is meant to be a dirt cheap MFer. Shako and Stormshield are a waste unless you've got more than one of each, in which case you need to go make some real characters to use your found loot instead of MFing ( I know! I know! I've been there too). 3 Perfect Topaz mask, Tarnhelm with a P. Topaz, or even Rockstopper with a P.Topaz are all bread and butter items in this case. Remember: The more you skimp on this one, the faster you can build your second.
For your second sorceressss, build an Orbitaller. That one really, really benefits from all the items you can throw at it.