I just went through the same thing with your identical truck. I decided to go with bilstein 5100/eibach coil for the front and bilstein/OME dakkar leafs in the rear, with this I fit 33x12.5 tires on 15x10 rims. I dont remember the offset on the rims but its alot. I only rub slightly near the pinch weld, and this will be fixed as soon as I install my Bushwacker 3" cut out flares. To fit 33x12.5 you dont need wheel spacers but you will want to buy flares. My tires stick out a full 2 inches from the stock fender, and I only have half an inch of clearance to my frame and upper control arm.
Theres my truck
These are the fender flares im talking about.
I was thinking of going the full OME kit, but you get a bit more lift with the bilstein/eibach combo. Also I don't recommend running an AAL. Its fine if you are on a budget, but on a 12 year old truck the stock leafs are already going to be pretty bagged. Putting an AAL on worn out leafs is only going to prolong their lift slightly. My leafs were almost flat when I pulled them off, and the top one was snapped at the middle bolt. Better off to spend the extra $200 for full leafs, since you probably will eventually anyway.
Just give toytec
a call, theyre very helpful with deciding what will work best for you. The truck rides 100 times better now with the all new suspension then it did stock. Much better than dicking around with spacer lifts and AALs.
If you have any other questions PM me.