[villagetinker]

You might want to have at least preliminary approval from ARC so that you know your basic size will be acceptable, otherwise you may have to repeat the process. As for the estimates I would use a checklist with all the comments you will be getting from future posters. I will add these:
Is underwater lighting included? If so how can it be repaired or bulbs replaced?
Will it be salt or chlorine based? Are all of the components compatible with both systems if you decide to change?
What type of finish with the pool deck be, you want NON slip.
Specific details on what is included, line by line, warranty information, etc.