Just became new member, don't have expander, but have ordered a work n play 17.51-2hl ob at the recent Perth caravan show. Picking up a lot of innovative mod. ideas and will have a lot to share. Started our camping ventures in a tent . Then moved to a camper trailer tent styler off road, could have gone any where, but never saw gravel let alone rocks or sand. Moved onto jayco eagle outback, plenty of mods , could have gone any where, great camper, but never left bitumin. Went back to tenting and resorts, (boring) so here I am don't really need off road, for some reason ended up with another one.