It is kind of possible to get GTWF, but you lose quite a lot.
And get GTWF and fighter haste boost.
One would probably have to go 1 Fighter \ 3 Monk \ 16 Wizard
The level and feat progression is um... less than optimal, but it's
just an example of cramming GTWF into such build.
Code:
1 Monk (Selected) Toughness (Monk Bonus) Two Weapon Fighting
2 Wizard (Wizard Bonus) Extend Spell
3 Wizard
4 Wizard
5 Wizard
6 Wizard (Selected) Maximize Spell (Wizard Bonus) Mental Toughness
7 Wizard
8 Wizard
9 Wizard (Selected) Spell Penetration
10 Wizard
11 Wizard (Wizard Bonus) Improved Mental Toughness
12 Wizard (Selected) Greater Spell Penetration
13 Monk (Monk Bonus) Power Attack
14 Monk (Monk Path) Path of Harmonious Balance: Fists of Light
15 Wizard (Selected) Improved Two Weapon Fighting
16 Wizard
17 Wizard
18 Wizard (Wizard Bonus) Quicken Spell (Selected) Empower Spell
19 Wizard
20 Fighter (Fighter Bonus) Greater Two Weapon Fighting