if its like my 1990 Champion Lasalle, the side molding is 1 1/2" wide and has a center filler strip that snaps in. Behind the filler strip is where all the screws are that connect it to the body where the upper panels meet the bottom galvanized panels. The automotive type stick on will not do the trick if thats the case. http://www.factoryrvsurplus.com/products.php?product_id=2070
Same here. Automotive side body moulding works just fine. Many styles and colors to choose from. Easy to install. Can be a little pricey. Got mine at a surplus outlet in Elkhart at a decent price.