So I assembled the following bear bag system that I've been using very successfully over the past 2 years. It has 5 components: a ultralight stuff sack capable of holding 4-5 days of food, 40 feet of reflective guy line, a mesh throw sack, a mini-biner, and an OPSACK. All in, it weighs 4.0 oz, just 1 oz more than Backpackinglight's Ursalite system, but it is higher capacity and far more sturdy.
So... this guy sells plans to build this awesome tear drop camper for under $500. Unfortunately, the kids and hubby won't fit. I plan on building one in my lifetime, slapping a road bike to the top, and riding HWY 101!