Like all FH, that would depend entirely on the size & quality of the fish.
You can buy juvie KK that are reasonably priced, but the more potential they show at an early age the higher the price tag.
King kamfa of a good quality is a must for buying fish from overseas. Although being in the bay area, you might find a few local die hard FH guy who might have some king kamfa FH frys to sell. And yes, KK is one of the more expensive side of the FH.