Sean,
Two weeks is not a lot of time, but a good pot belly will help fill that space in the small of your back by pulling the suit material around front and snugging things up.
Given the time constraints, you'll need to:
1) find all you can eat buffets, preferably with carb heavy selections and pastries,
2) block out entire afternoons in your schedule to allow time to eat and digest in a continuous pour process while taking advantage of the all you can eat pricing,
3) finish your days with a half gallon of ice cream before bed (the perfect fat builder!), and
4) avoid all exercise!
You'll be filling out that wet suit in no time!