Possible rim width and backspacing for 5 lug taco???

Hey guys Just purchased my 2013 reg cab 5 lug base Tacoma and I absolutely love it just hate the puny wheels. Looking to buy cragar v5 15" wheels just wanting to know how wide I can go and what back spacing I would need to fit??? I would really appreciate the help as I've been doin g hours of research and can't figure it out.
Thanks

 

I've been told that 15's won't fit with our brake calipers.

 

Most wheels rub on the support bracket of the caliper. I ground mine down to fit jeep tj wheels at first, but I changed over to nissan z32 turbo wheels a few months back. When I was looking, I found that any wheels with the right pattern and useable hub that were fit for fwd cars had the clearence to fit. Also if to look at wheels listed for rav4, highlander, or camary they almost always will bolt right up becuase they use all the same components in those cars hubs and brakes.

The stock 5lug wheels are 15x6.5, 5x4.5 bolt pattern, +40mm offset with 60.1mm hubs
just for refference.