Using a crowbar, remove all cracked or damaged windows from your camper. Broken windows can cause damage to the interior of your camper because they allow air, water and dirt to enter the camper. Remove any vents, doors and exterior trim.
Run butyl tape along all seams where you have removed doors and windows. This tape will help to seal the camper from the elements, reducing the risk of future damage. Replace the windows and doors. Apply caulk around the frame of each window, door and vent.
Replace the exterior aluminum of your camper. This is the easiest and cheapest part of your restoration job. Putting up new siding will give your restored camper a shine that can't be matched by simply cleaning up the old exterior. Exterior aluminum can be bought in large sheets from a supplier. Use a power drill and decking screws to affix the aluminum to the exterior. Replace the trim after you have installed the new aluminum.
Remove all appliances so you can begin interior restoration. Pull up floorboards and check for any damaged wood studs at this time and remove. Insulation comes in large sheets that can be simply laid into the floor deck. Install insulation to weatherize your Fan camper. Lay new flooring in carefully on top the new insulation and install using a hammer and nails. Paint the walls and floor as you like to give your camper flair.
Replace any damaged or non-working appliances with new ones. Clean your appliances, such as a stove, refrigerator or air conditioner. Check hook-ups to be sure that everything is in working order.
Add chrome trim to the interior for a retro '50s style. Clean aluminum inside the Fan camper for extra shine. Now your restoration process is complete. However, the fun isn't over if you don't want to stop. You can always keep amending and adding to your camper, making new curtains or painting designs on the walls to add unique charm.