Now thats a good question.

 The last slab on grade I did had to have a soil engineer on site.

3 days excavating 40 trucks of bad soil removed and replaced with gravel and fabric and compaction.

After all was said and done $40,000.00 (that's is the unknown)

On a raised concrete floor I can be sure of the price of : concrete, joists ,mesh ,plywood shoring , profit , My guys my labor.

 With the flooring syt. out on the market today the labor has a easer learning curve than ICF's.
 Yes Mr Jonson I can say this is what it cost for me to do it. When do you wish for me to start.(travel is not inc.)