You didn't mention how old they are, so I will assume they're still babies. Gen. Strip females are going for $400-$500 on Kingsnake, so I would say the het. Pair is probably worth around $200. You may be able to get that much for the female alone. The male would probably go for $50 to $100. At these prices you might also want to try to sell the male as a normal to someone looking for a pet.