We are getting ready to purchase an above ground pool. Planned on a nice metal/resin one, but the costs are astronomical. Looking at Coleman and Intext 18' or 22'. Any advice there on size or brand? Also going to have excavator do the leveling and sand. Anything I need to be aware of? We'll have to have a water truck in (we have a well.) Any advice on pumps or systems or installation? We're brand new at this and would appreciate any help we can get. Thanks in advance!