Regina is not exactly a hotspot of system design... i know, i have been there plenty. If your friend is looking for a be all and end all theatre, he needs to first take a trip to toronto, or chicago and determine after looking at some rooms, what is important to him.
Saying what is the best projector is like looking for the best speaker. there are so many options that there is no one answer. and the supporting system is just as importnat. sources, screen, environment, etc.
And as in most cases, if he wants a be all and end all experience, there is stuff he has never even heard of that can take things over the edge. the right seating, motion chairs, lighting, masking systems... etc.
He needs to identify what he wants first.
just hanging out, rollin with the flow.