From my experience it depends on what you mean by week long trip. Do you plan on going a short distance with a weeks worth of gear, or are you planning to cruise for a week stopping in different places. Are you sailing in the ocean or protected waters?

A way a buddy of mine did it with a 16 was to get some Dry bags for the stuff and he rigged a triangular net that he made out of something. It might of been one of those small packable hammocks that you can find at Wally World in the camping section. The net attached to the bottom of the bridle-forestay junction and the other ends were attached to the front cross bar corners. Nothing fancy. It was easily removed. The bags were placed close to the beam to keep as much of the weight as possible off the bows. Cooler strapped on the tramp close to the mast. Worked great.

I do a lot of boat camping but I don't have to go far. The furthest island we camp on is about 3 miles away.