the same as before +
Lightning Mage
A. Immunity to paralysis. - 125
Antimagic
1. Magic resistance is doubled. - 100
2. +0.5% to elemental resistance for each point of wisdom and intelligence. - 175 (not enough, but I'll take it for free, and I'll buy telepathy)
Magic resistance can be useful, yes.
Definitely dump strength, the rest is up to you, but Ples is right, constitution won't be superfluous, you can also have a little more intelligence, and you can lower dexterity and perception slightly.