You gain an arcane caster level equal to your initiator level. You gain spells per day as a wizard of a class level equal to your arcane caster level. Choose a number of spells equal to the number of maneuvers you know, of a level not higher than the highest level maneuver you know. These are treated as being in your spellbook. You may change these spells every time you enter the Spellcaster's Stance.
I think this would be the way to go for a T1 discipline. The trick is to make just T1 enough that it's T1, but not T0 enough that a DM will look at it and immediately dismiss it.