tower hinges,
I made a set, for the project, they clamp on to the anchor and will let the tower pivot and line up correctly,
also if your planning on tilt up or down a tower, add some extra bracing on the base as most likely the angle iron in the tower many not be enough to keep from bending,
I went across the legs with what would be a temporary horizontal braces when standing making the base of the tower work as a unit not just the two legs pivoting, on the hinges. the a frame give some much needed leverage, and to help start the lift a jin pole helps as well, place out in front of the line,
I had side ropes on the tower as well so if a leg would have collapsed the mill would not have swung side ways crashing
I use the mill for water pumping for the farm, and cattle, the well is 280 feet deep,