We thought that levelling everything and digging in/levelling the 4 buttress free side upright channels and all those blocks was the biggest PITA and would have been worth paying someone to do that. I made my DH and boys get everything within 1/4", check, recheck and check again. The Transit seemed to be attached to his face when the shovel/rake was not attached to our hands. I became the evil overseer and everyone hated to even think about pool work for that week. The wall, while HUGE, HEAVY and LONG was also a tough job, we were just so glad to get that far that we were happy to do it LOL....If, (when - we are moving into my inlaws farm in 10-15 years) we do this again, I WILL hire someone to do the work...