[lcstorc]

Souds like lots of progress today. Yes what you bought was base rock. When put in a tank with LR it will eventually become live. This is like the piece I described that the daughter of my LFS owner sold me. Sometimes you can get some great pieces this way. Just rinse it off and put it in the tank. There is no need to cure it. ATM you have the bio-balls preforming filtration plus have only one fish so I would not really worry about it. I would get some good LR though to help in the short term and to seed the base you bought as well as what you already had.
Onto the livestock list. Most of it I think is good. A couple of things I will mention ust so you know.
First off the only crabs I allow in my tank are the scarlets. IMO the others are just too likely to find a quick meal of something you want to keep like a snail or a fish. The scarlets are considered very safe though I just broke down and got some this week so I am trusting others on this one. Previously I had no crabs in my reef at all.
Several of the snails I know nothing about but turbos have the nickname of buldozers for a good reason. You would be amazed at the rocks they can move when they get big. The other worth commenting on is the bumble bees. Everyone seems to have their own opinion on these and sometimes I hear they are reef safe and sometimes not so I have avoided them just to be safe. They are really cool looking though.
Be ware the pistol shrimp. Another animal I have heard very mixed reviews on. They have a neat symbiotic relationship with the goby but do some more reading before you buy this one. I have even heard of them cracking tanks.
Beware the urchin if you are going to have a reef. Most of them are not considered reef safe. First they eat the rock and second they are buldozers as well. If you really want one go for it but just make sure first.
I would avoid the sea slug since they release toxins into the water when stressed or dying and I don't think you want that.
Also you have a lot of starfish on your list. They are cool animals but that is just too many unless you want them to eat all your fish. Avoid the sand sifter since they live entirely on the infauna in the sandbed and are recommended only for well established tanks of over 100 galons. Also linkas are know to be tricky so you may want to ditch that as well. The banded serpents are good just be careful since they like to try to climb out of the tank. If by the fancy star you are referring to a basket star do not do it. They have an almost 100% death rate in captivity. If something else then that would be a different story. I don't think I would get 4 cukes either. Maybe one would be good but from what I understand they can get pretty big. I save my favorite for last. I LOVE fighting conchs. IMO there is nothing better to keep the sand bed clean. Queen conchs are also good for the rock and glass so in short. I love conchs.
Anyway looks like things are improving rapidly and you are doing some great research on your fish list. You and your tank are going to be just fine if you keep up at this rate.