@Bijju Welcome to TFP. Very nice pool design. Several items that I would review
As others have stated - you need to seriously consider a SWCG. you have Jandy automation and the maximum SWCG they make is 40k gal (AP1400). So the AP1400 should be suitable for your 26k gal pool. I have this unit and it works well. It makes life so much easier, especially in the Houston area.
Speaking of automation, it shows the Jandy AquaLink which is fine but it is the PDA version. If you want full remote accessibility via your phone app or computer, you need to get the RS version. And since you have 3 pumps, I recommend you get the RS8 version. It seems the PB is not giving you flexibility on how your automation system Functions. If you wish to local control (for use by your kids), you can still have the PDA connected in addition to your full remote capability.
There are many capabilities that automation can provide and picking the right system is important now before everything is installed. For example, do you want your lights to be controlled as a single unit, they all come on at once, or do you wish to be selective in which light comes on. How it is wired to your automation system will be determined.
Similarly, your plumbing design is important now before they do the installation. Do you want your bubbler to come on while you are in Spa Mode. How they plumb that will determine if that is capable. Since you have 2 water feature pumps, ask the PB for plumbing design now and ensure that is what you want.
I know this is a lot, but many people just assume the PB is giving them the right equipment however, you have to live with it every day so it is best to understand what capability you want so it can be designed and set up properly.