AS many people who want or are thinking about making a camper van , and don't have a whole lot of skills or money to make cabinets i believe buying the ubs cabinets might be a good way , they are light and says can hold 40 pounds on each shelf , these could be attached to a wall in the van they have one that could even be used as a closet etc.
here is a wal mart link to what i am talking about!
http://www.walmart.com/search/?query=st ... %20cabinet
for others their are also wood front cabinets that many sell that are still pretty lightweight to and have the wood look !