The bacteria would certainly survive. Coralline can be sensitive and may die and seem to disappear but it will come back eventually. Again, it is a shame to sacrifice all the benefits of having the sponges, worms and other critters that will eventually help lead you to a more successful tank. But I just reread your first post. If you are just setting up the tank and don't have any rock at all, then there is nothing to cycle so you don't really have a choice. If it was me, I would buy half the rock from KP (to get nice shaped rock) cure it (which will take about 3 weeks minimum probably) and then get a few fish. Wait a month or two (which will give the bacterial population a chance to multiply) and then get the other half from LiveRockNReef (to get all the "life") and put it in as soon as it arrives. Overnight is overnight, no matter where you live. Even if you are "new" in the hobby, IMO it is worth getting all these critters AND keeping them alive. But that means you need a tank with an established biofilter ( cured live rock) functioning first. If there is a pet shop near you that has some live rock, that could take the place of the first batch (KP rock) and may speed things up if that rock is already cured (or partially cured).