I'm concerned that your pump is gonna be too powerful for your filter. In the case of pool pumps, bigger is NOT always better and if your pump is too big for your filter, it can damage it. I also have a 24ft AG and when I replaced my pump a few years ago, I switched from a 1hp to a 1/2 hp and it does fine. I also have a 200# sand filter. How does that compare to the size of your filter?
Regarding chemicals, it is probably a good idea for you to test the water once you get this thing up and running and post results here before deciding which of those startup chemicals to add. Pool stores are notorious for giving you stuff to put in your water that you don't need.
Welcome to the forum. We are glad you found us. And, oh, by the way, I can totally relate to a $300 dollar project turning into a $2000 project ............![]()


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