Just be sure to check the option for the $5 coupon on the product page before adding it to your cart. Then during checkout, enter the promotion code 2XAVDQWU to get 50% off, then be sure to pick "Free Prime shipping" (it will automatically start a 30-day free trial for you if you are not already a member) for an additional $6 off the base price. I am not sure if you will get the $6 discount if you are already a Prime member or if that is just for new members who sign up for the trial.
Set up a reminder to cancel your free trial to Amazon Prime before it ends in 30 days if you don't want to keep it (you will start being charged after the 30 days unless you cancel).
Shipping & Handling:
Your Coupon Savings:
Total before tax: