Tire/Wheel question

I ended up asking this question in my thread in the suspensions forums, but I think the question belongs here.
I plan on getting my truck lifted with a toytec (ultimate).

I have read that this kit can be used with 33" tires. But I don't know much about backspacing, rubbing, etc.

Can you guys tell me if this is correct:

based on this chart:


Do I need 4.5" of backspacing? more? less?

If I need 4.5" of back spacing on a 9" wide wheel, that's -12 offset.

If I was to get 17"x9" wheels, then this one would work, right?


Now for the tire, I have read that with Toytec's ultimate lift kit, 33" tires can be used. How do I know if 12.5" wide tires are compatible with a 9" wide wheel and a 4.5" backspacing? Example of a 33"x12.5" wheel


Any advice?