Best thing would be lots of bucket or bins for the water LR
and sand. I have done basically the same thing moving a 90 gal
reef tank to a new appartment a few miles. This will be a much easier.
Depending on the corals you have they will need as much space as possible. When moving my tank across the living room (second time- DOH!!), rubbermaid bins worked the best. It allowed a decent enough space for animals and such. One for loose corals, one for rock and one for sand. You can divide whatever fish between the rock and coral bin. Make sure you remove as much water as possible before removing the sandbed. If a DSB
, I would only keep the first 2 inches or so. Do not keep the entire bed unless an SSB
Add a low GPH PH
or airstone to each bin (except the sand) to keep the water aerated. Ammonia should not be a concern if you only have a few fish.
Once they are removed and out of the way you can begin setting up the new tank. As well as the added volume of the sump, be sure you have an extra 10 or so gallons 'cause your gonna spill.
As far as a new cycle goes I don't think it will be much if anything. Mostly it will be a minor alage bloom. When I moved mine across town, it took about 10 hrs start to finish, no loses and only a mild cyano