The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Yes u need to have your tank completely set up...all pumps, sumps, rock, sand, and so on. Everything but the livestock. Start your cycle, then add fish once it's done. If u add live rock later it will just start another cycle.
I think everyone is misunderstanding the OP. He can't get the LR for a few days, not after his tank cycles.
The LR will help in the cycle because it will seed the rest of the tank. If you can't get it for a few days, its not a big problem since tanks take anywhere from 2-6 weeks to cycle usually. Without the LR, the cycle would just take longer