Get "There Are No Secrets" by Harry Higley. Covering is an art that you can only master through practice, though. Don't expect your first job to be perfect, and expect to waste at least one roll of covering your first time out, learning how it behaves. In the end, you'll have a plane that you covered yourself, something to be proud of, and something that looks different from everyone else's plane.

Solarfilm, Towerkote, and Econokote are three of the lighter coverings I know of. Since the plane doesn't need to be fuelproof, you don't really need Monokote or Ultracote, though for a first-timer, Monokote or Ultracote might be easier to apply.