Started putting up my 21' x 41' x 54" oval agp this weekend, and I am still not done. Hope to post pictures soon. We put the walls up tonight, but they do not line up (about a foot off) and cannot see to make the adjustments because it became very dark this evening. I sunk the pool in the ground about 4 feet and will not be backfilling, but building a deck around the whole thing. I unfortunately have to leave for 2 days before I can get this thing finished. I hope the adjustments to the walls can be made pretty easily so I can finish this sometime Friday and start putting in water. I hope to post soon with some good news.