How much will I need to buy for the lifetime of an Amelanistic Corn Snake?

i had a ultr-amel haha they are gorgeous but it all depends on if the light bulbs for heat lamps are good and how long they last and depends on how much you feed it and how often you clean its cage and if your starting off with a baby and a small tank you will need to upgrade perhaps so theres no real guess on money wise...you feed it a mouse or rat no bigger than the width of its middle section but thats all i can help you with sorry good luck though