Any idea on ball park price for front and back pads and rotors?

Had mine replaced today now I have smoke coming from the rear wheels.
Told I need new calipers. price?

 

Search it on Autozone.com. Even if you don't go there to pick them up, it'll give you an idea. Enter your vehicle information and it'll bring up everything you need.

 

I am going to stick my neck out here and say that a bit of smoke is actually normal. If you've replaced both the pads & rotors, then likely the smoke is actually the machining oil burning off the rotors. Depending on the amount of oil they coated the rotor with, the smoke can range from not even noticeable to WTF? Is my car on fire?!!
My suggestion would to be go ahead and drive your truck. The smoke should disappear shortly but after 500 miles, go ahead and check the rotors & pads. The parts should be under warranty so if you do need calipers, you can replace everything all at once and have a whole new system.