Is there anything key items I need? I am noob wizard.
Noob CM wiz, that is. Some of your gear (Mempo!) if pretty gg. Switching to CM, or having alt gear is a bit of a challenge.
For starters, you will only need 3 new pieces of gear. Well, 4. Actually 5. But some can be cheap....I also presume you have a healthy bankroll. Here goes.
Gloves, probably Tasker & Theo, just because they have a ton of mitigation, and you need alot of that. Think 9 CC and as low as 6 IAS. Trifecta with CD or All Res is nice. Or a trifecta rare with ALOT of armor..
Chant Will. As much DPS as you can afford, at any speed above 1.70. (if you do 7 IAS on gloves, then you'd need 1.69 wand...do the math).
Chant Force. As much DPS as you can afford. Make sure that you have at least 18 APOC between your Will and Force.
- That will give you 2.73 breakpoint and over 50 CC. Nice!
The other half of the equation is mitigation and LoH. Like you mentioned BT pants, preferably with Armor and All Res and LoH over 400. Max if possible with your DPS (will help with RD packs and electrify/molten/desicator, etc). You probably need a total of 800-1000 LoH. Obvious places is a ring. I don't know if you'll ever get to 800+...but try to get a ring (trifecta?) with as much LoH as you can. Drop min/max and INT to do it.
Otherwise its just alot of adding armor (or STR) and all res to all your gear...wherever you can. Mostly dropping INT and for you VIT in order to do it. Typically I suggest 35k for health, but if you're coming up on the shorter end of LoH then you might want to stay closer to 40 or 45 for safety. Its not rocket science. Just keep in mind that when you run SNS there is the damage multiplier.....don't worry as you see your sheet DPS drop (as you drop INT)....the SNS multiplier will take care of it. The top SNS wizards have been getting over 200K sheet DPS recently....with gg gear everywhere. most happily sit in the 150+ range. Since I don't have gg gear I (begrudgingly) run in the 100-110 range.
other alternatives are to get a OS (or CD) Chant will. then you'll need 2 extra ias pieces (ex. 55+18=73 1.73x1.61=2.79). But you'd have to do Inna's (killer for mitigation, which you're already struggling with) or IAS Pox. Good luck with that.....I don't know what your budget is or what the market is....maybe simple no frills trifecta is manageable.
Good Luck. Cheers.