I assume the dents are in the side. Put a false vent or reflector etc over each of them; enough to cover the dent only required..-- Cheap to buy. Also on dents in the back use a GB sticker! Use your imagination-- very few will twig it; dealers included!
colliezack
November 2009
Metal body [aluminium] of caravans is very thin so the only way would be to fill the dent's with fibreglass bodywork repair paste and get a near matching colour from a auto shop. That is most likely what a repair shop would do the metal is too thin to use suction pads they use on car bodies.