I have a rear passenger side swing away that used to hold my aluminess box. Its homemade, kinda heavy and ugly but it works well. I also have a rear and front bumper off a 2006 e350. They are in great shape. Being that the items are heavy and of awkward size local pickup is really the only thing to do.
Read detailed trip reports, see photos and videos on my travel blog, luinil.com.
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Current van: 2002 Ford E350 extended body camper with Colorado Camper Van pop top and Agile Offroad 4WD conversion.