Hi There,
I wouldn't use anything but a 4 1/2" x 4 1/2", ball bearing hinge and 3 hinges per door on what you've described.
There are two places in Toronto that I've done business with in the past and both are decent folks to deal with.
The first place is
Commercial Door and Hardware, speak to either Steve Lake or Chris Hynes.
The second place is
Hardware Agencies in downtown Toronto, speak to Frank Guarnaccia at the front desk.
My personal preference would be to use a Hagar hinge and don't bother with the NRP hinge, (non removable pin model) it's an added expense that you don't need to bother with.
When speaking to the folks at Commercial Door, ask them to suggest a "Hagar clone", they do sell knock offs and I've used them in the past and they are nearly as good as a Hagar.
You'll have to make the call on that one.
I hope this helps.
All the best
Gord