Hi, Jeff,

some thoughts:

1. Size does matter. Bigger pool...more of everything...especially your wallet. Chemicals, bigger auto-vac, more returns, skimmers, etc. Size will evaporate the 40k quickly.

2. I have really large decking around the pool. Decide how you will use the pool and decide your size on that. Never known it to be too big but again, it'll cost bucks.

3. Not sure what you mean by "hook up" utilities. If it's just to supply the junction box and the gas line, you're good to go @ 1000 per.

4. No opinion on diving boards...we decided not to use one.

5. I think shape is a matter of personal taste. I really like free form pools but mine needed to be a rectangle.