I have been installing above ground pools in Arizona for almost 50 years. If you are looking for installation prices in Arizona go here. This is my current price list.
The most popular stores in the Phoenix Arizona area selling above ground pools are B&L Pools, A&M Pools and Pool Supply Warehouse. We do a lot of work with all of these stores and I can personally recommend all of them. Buying your pool from a local company will give you the advantage of having someone to go to with problems and obtain help with chemicals and pool accessories.
I have been working with people all over the country with their above ground pool installations for a couple of years now. My site visitors with questions are encouraged to Ask The Pool Pro. I also contribute to pool forums with pool advice. Since I have been doing this I have learned so much about pool installations in other areas. Due to many different factors what I do here is not always what is done in other states. The differences are many.
We use masonry sand for all of our pool bases with very good results. I have never seen a reason to switch to pool pads or a vermiculite-cement mixture. Some areas do not have suitable sand for a pool base. Many other options are available and again, it is the locals that can help with this.
To bead or not to bead. There is only one reason I would start with a beaded liner. If you are planning a deck such as this one, that will leave your pool rails inaccessible, it would be a smart move. Otherwise there is no reason for the added expense.
See this page for photos of an above ground pool being installed in Arizona.