I would hold a snake for one month with a first deposet of the shipping price. if one month goes by with out a 2nd deposet on the snake the deal is cut and the snake goes back on sale. onec i get in to breeding and get in a nice stock I will have my website finaly up and running and that will be under my payment link and or terms of service. I would also make it clear that after one months time the shipping payment is non refundable. Keeps people from trying to mess around with you.