Do you have crushed coral, or sand? they are 2 different things really. You can use the crushed coral if you keep it clean..(siphoning off the detritus). The salt, make sure it is made for SW
tanks. I have seen salt for tanks and not be the right kind. Instant Ocean is what I use. If it is specifically for Marine tanks, just mix per instructions. The emporer power filter you may want to use for flow only...no media inside...You will want to get about 30 lbs of Live Rock for the filtration. You will not need the air pump. What you have is enough to get it started.
In the future you may want to get a protien skimmer and another smaller tank to make a refugium or sump. OPTIONAL
I would suggest not using the CC for the substrate and get some reef sand or if that is hard to get, use play sand...about 4inches on the bottom and then add the rock. This will be great filtration...