Welcome to our forum.
Looks like a nice, comprehensive list.As to the test kit: this is an area where many of us regulars agree to disagree. I am all for test strips, because they are so easy.
Lori,Honestly I have found that the less you agonize over what you have to add, what you have to test and how much you work on the spa the better you will do. Most new spa owners have a tendency to over-do-it and then turn around and under-do-it. Relax, enjoy the spa, and just remember to add sanitizer. Your water balance is very important but Sanitizer is vital. A couple of the things I would recommend is robes, water proof slippers and plastic spa cups for water (Oh, and don't forget the bottle of wine for the inauguration!)Try ownership for a week or two before you start buying products and you will have a better feel for what you need. Most dealers start you out with enough to get you through the learning process.BTW, I fully agree with chas, test strips are fine and very easy! Enjoy