My neighbor moved his pole barn shed a few miles away. The shed was about 40x60x14'. They cut the 6x6 posts off at ground level, lifted it on to a trailer designed to move houses and down the road it went. The whole thing was moved in a few hours. It would certainly be easier to move than a house. At the new place, they lowered the building over the site, bolted new 6x6 posts to the new ones which were sitting in place in predug holes. The holes were cemented at the bottom. Once bolted in proper postion, the holes were filled and the building done.