the wild side is by far my favorite. minus the non functional tailgate, and vette lights. however, it is not the only stepside conversion option. i the late 80s rockwood conversions did a fiberglass bed (still heavy as ****)
http://www.hubgarage.com/mygarage/jdmtrsprts2000/vehicles/45637/photos/2096724
http://www.hubgarage.com/mygarage/jdmtrsprts2000/vehicles/45637/photos/2809609
i have one i made into a trailer, that i'd sell. lol,