I agree with DoveGray85, build your own rig. There are several reasons why I don't like buying other peoples rigs, the main one being who knows about the quality of work? For all you know you are buying a total pile of poo. Also when you break down on the trail, and you will break down, you will know how to fix it. It is also very satisfying knowing that you built the rig that you are wheeling. Yeah it might take a little longer especially since you are in high school, but it is the better route to go.