Well if your 46g tank isn't setup already and cycled, then you'd have to do that before making the move. Once it's cycled, then an hour move isn't going to hurt it. Simply put half the water in a clean trash can lined with a trash bag and be sure you have SW
ready at the other end to put in the tank. Your fish will be fine for 3-4 hours (I moved my 55g from GA to FL, 8 hour ride, and all my fish survived with an airstone in 10g of water), so you can move your tank over and plop your fish back in once it's setup.
Now you would have to do the same for your LR
, put them in a container and be sure the water you use is taken from the tank so the rock will be used to it. This is a great article on how someone upgraded their tank and what they did with the LR
Inverts will be tougher depending on which one's you have. They are move sensetive to changes in the water, so I would make sure your holding tank water is exactly like your tank water (PH, temp, etc.). I would be cautious moving inverts more than once a year, it seems to be a recipe for disaster.
All in all I think it can be done, just keep doing your homework on it and make sure you've got a falt plan in place incase anything happens during the move.