In terms of your bonding grid, it will be independent of, and will not tie into, your ground with one exception. If you install a pool light with pvc conduit going to your junction box (sometimes called a pool deck box), you will have an insulated 8g stranded bonding wire coming from the light housing (where potting compound is used), traveling through the conduit, and terminating at the ground bar in the junction box. There is potential requirement to bond the junction box to the bonding grid also, which would also tie the two together with certain brands of junction boxes. Then an unbroken ground wire will go from the junction box to your service panel ground bar. That is the only place where the bonging and grounding of your pool becomes blurred. 680.23 of the NEC is fairly specific and clear with it, and Mike Holt's website diagrams it out nicely. The NEC doesn't delineate different requirements for 12v and 120v lights yet, so the requirements remain the same for the time being. I did my own electric also, and spent weeks researching to ensure my stuff was correct, safe, and passed inspection. Many electricians are all over the road on stuff, especially bonding and pool lights. My inspector was suoer helpful and very knowledgeable with pool electrical and got me pointed in the right direction after a friendly request for his input before I started.
Your pool location looks great and good luck with the install!
Joe