Hi,
I'm not the metals guy but I can tell that Leslies tells EVERYBODY they need phosphate remover and that EVERYBODY's phosphates are high. It's mostly a meaningless way to get you to spend money.

Chlorine levels of .5 are low, but, without a test for copper and iron, I'm not sure where you should go.

But your pH is terribly low ans you'll need to add several boxes of Borax to bring it up over 7.0. Below 6.8/6.9 for a vinyl pool can really damage it.
Not sure what "Base 8 " means.
CYA definitely needs to be raised but....be sure the CYA contains ONLY CYA. Branch Brook Pools in my area last year was selling it mixed with either baking soda or borax, basically doctoring it.
TA is fine for now. it WILL rise when your pH goes up.

You need to get your own test kit and test your water yourself.