I put our 18x36 liner pool in Sep 2000. I bought the kit from a local builder and cut no corners. It’s wood walls, salt water, led lights, deck jets, diving board, etc. I paid to have the hole dug and the sanded cement done. We poured 19 yards around it and ended up just over 18k in it. I did everything else and it was a job but we saved around 17k. The mark up on pools is crazy. Everything is automated except putting in chemicals and cleaning skimmers. I grew up with a chlorine pool and lost the battle on this one. Go salt and don’t look back, we literally do nothing!!