Thank you for that advice. I am getting all of the ancillary support equipment ready ahead of time as you suggest.You have a well thought out plan. It's going to go great. Just make sure the live rock you're referring to. Is actually live rock and not just some rock that's been wet a week at your LFS. It should have lots of different hues and possibly some coraline on it. It SHOULD NOT be white.
You're doing fine. I am just pointing out some things to save you some money and keep you from wasting it.
Have your water change equipment ready for when you bring your rock home (buckets, pumps, heaters, salt and water.) Monitor it and change a little water out daily. You should only have to do it for a few days. Be completely prepared for when you bring that rock home. Have a refractometer. Don't even waste your money on a hydrometer. I threw mine away.