I'm in s. Arkansas, and my bids for a 20 x 40 IG grecian (octagan)pool, polymer walls, w/vinyl liner (20 ml), 3' to 8' deep with 1 hp Hayword and 300# sand filter, polaris 280 vac, 8' steps, and 8' divingboard are between 25,000 - 28,000. That does not include getting the electrical work done. I will do that myself and it will cost 400.00 or so. Also, I am getting at least 5' of concrete all the way around pool. I found the kit online for less than 8,000. So in this area, installation by PC's are triple the cost of the kit and then some, but that is doing everything, except running the electric to the area- they will hook up pump, lights, etc. to available supply. Hope this helps.