What would you charge for a 35 x 50 slab with 5 inches 4000 psi concrete, rebar, plastic and 4 inches stone. No footers. No grading, just level the rock, rebar, plastic and cut. The Concrete here is about 120.00yard. the stone is 21.00 a ton.curious what I should expect to pay. The first quoate was quite offensive.