First of all,welcome to AA !!
50gal tank is a good starter
2 heaters are always good, but visitherm may crack...
IO salt is good, but I'd rather use Oceanic salt.JMO
2 Maxi jet PH
AquaC Remora skimmer. excellent choice
Fluval canister is good choice too. Ditch the bio rings, because those are nitrate factory.
is good. I'd use 2" PS to save $$$ and 1" LS
Lighting is ok for FOWLR
is a good filtration source for SW
tank. You can put LR
in since your tank still in cycle process. GoodLuck!