Just completed new front underbelly on my Infinity 38, placed extra side to side struts to hold the coroplast up, purchased the coroplast from Home Depot (10 sheets, 4x8 feet) for $110.00. Also purchased some radiant barrier from Home Depot and glued it to the coroplast, shortened 3 drains and placed two access panels to reach them. All in all looks a lot better than from the factory.