Yes you do get ginger females, are you sure the kitten is male? It is very very unlikely that it would be a male tortie, some say impossible. There is also a chance he could be infertile if its a male.

If it comes to it, don't take him to a pet shop. A rescue centre would provide a much nicer environment and find much more suitable owners for the kitten. Also you can advertise at your local vets for anyone wanting a kitten.