Hi Shannon, I'm always up for a shopping challenge!
What about something like this? They go together & there are a lot of sizes (& not expensive either!)
Mossimo Supply Co. Loop Terry Hooded Jacket - True White : Target
Mossimo Supply Co. Loop Terry Bermuda - True White : Target
This is cute, but I couldn't find shorts - just pants
Victoria's Secret - Terry zip-up hoodie
or
PUMA FT Short Sleeve Terry Jacket at Zappos.com
PUMA FT Terry Shorts at Zappos.com
apparently this jacket isn't available, but maybe you could find it on ebay?
Juicy Couture | Shop Online | Sale | Terry Gabrielle Tracksuit
ok, I know this isn't what you're looking for exactly but it's really cute!
PUMA FL Hooded Sweat Jacket/Dress at Zappos.com
This site has a bunch of hoodies and some capris at the bottom of the page
Soon To Be Mrs Sweat Suits, Bride Hoodies, Custom Rhinestone Hoodies and Sweat Pants - Wedding Attire - Wedding Clothing - Wedding Clothes
Your best bet might be waiting 'til like Feb or March cuz that's when the new spring/summer/cruise-wear comes out and you'll have a better selection. Good luck w/ the hunt!