Years ago in my town there was a water tower that was 250 feet tall and the town sent out invitations to bid and all the contractors had bids that the town thought was too high. Then the high school physics teacher and the high school metal shop teacher put their heads together and they made it a school project and ended up doing the job for less than 5% of the lowest professional bid. The physics teacher designed the plan and the metal shop teacher and students carried it out and basically it was a matter of making a handful of cuts in the right places to weaken the legs then run a long cable around the weak legs taking a page out of Star Wars they tied the legs with the cable and basically pulled on it. 500 high school students pulled on the cables all at once and down came the tower. Then the metal shop teacher got the metal shop students to salvage the metal and added it to the school's materials inventory for projects though they had so much that they still had most of the structural materials left over so they sold it as scrap and that brought a few thousand dollars that went to new equipment for the school. Now they have the new water pumping station and new towers in place of the old ones and that produces five times what the old pumping station produced which is more than double the town's needs.