The shrimp will help the tank to cycle faster. If time isn't an issue at all, then skip the shrimp all together. Watch your water params, everyday, and the ammonia gets up to 1.5+ ppm than I would do a water change. Bang Guy recommended this to me and I did it and worked out great. The idea behind that is that you keep the ammonia down so that you don't kill everything, but you keep it present so that the tank can cycle and build up bacteria.
Your 'dead' sand will become live from the LR so don't worry about that. Some people say to buy fauna kits but I've noticed that I've gotten most of the same critters from my LR, it just takes a little longer. But if you have the money (about $50 + shipping) than you can get a detrivore (spelling) kit from online to give you some critters.
I used to have a fish only with a volitan, but since last November I've been studying reef setups. I put my 'knowledge' to the test this summer with my nano. This board was a huge 'library' with tons of information. Nano's are harder than bigger systems and I wanted to really test myself before I spent the big bucks on lights and all those corals.
Take it slow and you'll love watching it all grow.