I haven't looked at the Master Specialist all that much, but as a SCM, you can definitely afford to be a Focused Specialist, as you can emulate Conjuration and Evocation. So you could afford to drop either of those. I'd probably drop Evocation, Enchantment, and Necromancy.
I'd consider a way to ignore metamagic costs at least a few times per day, but that's just me. Incantatrix, Anima Mage, and Magical Trickster can all do it.
You definitely want Earth Spell and Residual Magic for feats, and since you're taking Master Specialist levels, consider dipping into Shadowcrafter for a boost to the reality of your shadow spells. Get SCM 3 as fast as possible, though.
Here is a crazy build that you might pare down and/or use parts of.
[spoiler]
Gnome Wizard 1/Binder 1/Anima Mage 10/Shadocraft Mage 5/Magical Trickster3I'd suggest taking the gnomish illusionist sub-level at 1st to get Silent Image as a cantrip, and also consider making this a Focused Specialist (Illusionist). You can emulate Conjuration and Evocation, so you could drop both if you want, and then either Enchantment or Necromancy (or both of the latter, and Evocation). The build requires two feats at first, so you either need to use one Flaw, or the non-gnome adaptation of SCM.
The trick: use Vestige Metamagic to Heighten Silent Image for free to 10th level with Earth Spell to cast 9th level conjuration/evocation spells as early as 10th level (Bind1/Wiz1/AM5/SCM3).
Add on Residual Metamagic, and you can emulate a 2nd 9th level spell using a Silent Image for free on the next round. Finally, combine this with the Magical Trickster's Tricky Metamagic to also apply Repeat Spell to the first one, and you could cast
three 9th level spells using two cantrips in two rounds once per day, and ultimately get
a total of seven 9th level spells per day cast from 0th/1st level slots...
Progression:
1 Focused Illusionist 1 Precocious Apprentice, Toughness
2 Binder 1 [Retrain Toughness to Improved Binding]
3 Anima Mage 1 Heighten Spell
4 AM 2 [Retrain Prec. App. to Earth Sense]
5 AM 3
6 AM 4 Earth Spell
7 SCM 1
8 SCM 2
9 SCM 3 Residual Magic, [Shadow Illusion]
10 AM 5 [Vestige Metamagic]
11 AM 6
12 AM 7 Repeat Spell, [Vestige Metamagic x2]
13 AM 8
14 AM 9 [Vestige Metamagic x3]
15 AM 10 Chain Spell
16 MT 1
17 MT 2
18 MT 3 [tricky Metamagic], Feat?
19 SCM 4
20 SCM 5 [/spoiler]Definitely check this out if you haven't, also.
http://forums.gleemax.com/showthread.php?t=655556