It is my personal opinion that most people who have removed the AG on their LCDs have seen little *real* difference. It's hard to quantify what difference is really there, because the eye plays tricks. If you expect things to be better it will seem so.
I did remove the AG on my LCD, but onyl because it was badly scratched. Afterwards, the bigst difference that I noticed was that the scratch was gone.

In the meantime, had my AG already been removed when the LCD got scratched...
Until you have things done, I'd leave it in place. Once you have a working projector, if you still feel a need to tweak and refine, think about it then.