- I just did the move this weekend, so I can't be sure that I didn't have a cycle, but the fish seem fine so far.
- I did save as much of the tank water as possible, even though I've heard it doesn't make much difference since not much of the beneficial bacteria lives in the water, but rather on the rocks, sand, etc. There was the water in the buckets with the fish and also the water I put in the coolers that had the LR
- The sand: If your sand bed is deep enough then yes, it can cause very bad things to happen, which mine was. That's why I bought new sand. I knew I wouldn't be able to get all of the sand out of the tank, so there was some in there, but I couldn't think of a way to safely transport sand and keep it live without risking the Hydrogen Sulfide badness...
Here's another thread with more of the discussion on sand:
Moving my tank
In your case, I think the biggest (possibly the only) thing you have to worry about is your sand. Also, if you can get a hold of them, sawhorses will help you A LOT.