Average cost per BD FT to have Red Oak Kiln dried

Anyone what the typical cost is for 4/4 Red Oak to have it be kiln dried ?

In western North Carolina it's about $1 a bf.

My last batch of milled poplar was $.52bf for 6/4. My sawyer charges based on how many days are needed in the Kiln. My curran batch is estimated at 1.39 at 30% moisture and 18 days of drying. I hope this helps!!