I'm intrigued by the idea of a horde of Templars. I've not yet play tested this list but 2 things should be kept in mind: I don't play in tournies and my most common foes are marines, chaos, and necrons.
HQ
Master of Sanctity: 3 cenobytes, meltabombs and termie honours 150
Emperor's Champ: Suffer not the unclean 125
Elites
12 Sisters Repentia, 1 Mistress, 1 Priest with carapace and Evicerator 340
Troops
10 Initiates with bp and ccw, 1 pf & 1 flamer, 10 neophytes with bp and ccw 280
10 Initiates with bp and ccw, 1 pf & 1 flamer, 10 neophytes with bp and ccw 280
15 Battle Sisters with 2 storm bolters 175
15 Battle Sisters with 2 storm bolters 175
Fast
2 LS Tornados 160
2 LS Tornados 160
Heavy
1 Vindicator with hunter killer and smoke 143
Comes out to 1998. I should also mention that I rarely face much in the way of armour so I don't think I need any extra busting. Though some shuffling good switch the sister's storm bolters for meltaguns. Let me know what you think.