I would get fire bricks. The pavers are not designed for high heat. Look for the fire bricks at a place that sells fire places or wood stoves.
Team: Pyle's BBQ; Yoder YS640; Good-One "Trail Boss" 60T; Homemade rig; 22" Weber Kettle w/rotisserie ring; Big A$$ Rotisserie; BGE-Small; Weber Kettle Gold, Weber OTS, New Braunfels offset smoker.
Saddles BBQ Bistro