Anyone interested in large water tanks? I need to buy a 200 gallon NorWesco (http://www.watertanks.com/category/150/) tanks to hold water outside. These tanks are UV stabilized so won't deteriorate in sunlight. The shipping is expensive, but shipping price doesn't increase dramatically with additional tanks ($127 for first tank and $22 more for each additional tank). LMK as I need to make the order soon.