Search for "barn movers". That may be a good place to start. Also, ask local spa companies for recommendations
Loop Loc is a great product for safety fencing around pool areas.
Safety Covers are the best swimming pool covers. Insurance rated. They will protect Children, Pets, Adults and make for an easy spring cleanup. www.atlantapoolsafetycovers.com
Start by deciding if you'd like to have an above ground pool or below ground pool. There's gotta be a significant cost factor there I'd think.