My Dad has one we set up a number of years ago.
He put the tower together on the ground, the jacked up the end and attached the head and wheel. He had put in concrete footings with heavy angle irons sticking out about 2 feet for bolting the legs to. He chained two legs to thier respective footings, then we pulled it up with the tractor. We had a second tractor on the back side with a cable as a safety in case it wanted to keep going once we had it up. We went nice and slow and it raised without a bit of problem. Once it was up it took a little jostling with a bar and come-a-long to get the legs all set just right, and then we drilled and bolted them to the footing irons.