Using tap water is not a good path for saltwater. It will lead to algae issues. RO
water is best, even distilled water will leave nutrients in the water column.
In terms of using what you have, any of it can be fine to cycle through the tank, but in terms of its of any real value it's unknown since we don't know what brand it all is.
I'd suggest reading our articles section to get an idea on what you'll need to do to get a saltwater tank going. You'll need 1 lbs per gallon of rock and sand for starters.