I don't mean to pee in your proverbial pool, but I have to share a joke/story quick.
My folks go to visit great friends in the telephone industry who own an exchange in Cornelia GA. Both are amazed by the backyard sanctuary with boulder walls and beautiful landscaping surrounding the elaborate pool.
Conversation between my Dad and his longtime friend turned quiet after all the topics of investment, contractors, time and maintenance... not to mention hosting guests of course. Milt turns to my Dad and says, "Bob, do you know the difference between a boat and a pool?"
My Dad plays along instead of citing the obvious and says "What's that?"
Milt says "You can always sell a boat Bob."
In the way of contribution I have little to offer but I recommend the chlorination system where you add salt. My X-Bro-in-law had that and it was really nice. Easy on the eyes and the kids, very simple to administer and much safer to have around in terms of chemical storage.
Regarding storage, prepare well for all the clutter that gets played with in the pool and what is used on the deck area... have a changing gazebo or something thought out. Good Luck!