We once made a pig aec from an upside down tattie box with a plastic cover on the roof held down with turf. Once stuffed with straw it looked really cosey and the pigs loved it. They did use it for scratching but it held up well, as it cost nothing it didn't matter if it didnt last long. Our water was a treck away so the solution was a hose with a tap on the end and if the hose couldnt stay out then a large container was filled and buckets used from that for the pigs. Dont carry buckets too far for too long, it is no good for the elbows and you may end up not being able to carry anything. I speak from experience!