Just this last Monday I moved all my tanks around (put the two 29s on a 3 high cinderblock and board stand with the 10 and 20 underneath.)
Put 5 gallons of water, plants and fishies into rubbermaid totes, hung the filters on and kept them running. Pythoned the rest of the water out. Tried to lift the tanks with the gravel still, but was a tad too heavy (could have done it with some help, but was working solo) gravel into 5 gallon buckets.
Tanks in new spots, added the old gravel, added 6 inches of water, replanted, filled rest of the way with fresh water and netted fishies back (lost a brand new Dalmation Molly-I KNOW she went into the tote, but nowhere to be found when putting fish back!)
All fish doing good, water readings good this evening, so no mini cycle (filters and gravel wet all the time).
Took about 2 hours (including a quick lunch).
No problems!
Will be repeating the process next spring. Using tax refund to spring for two 55 gallon tanks to replace the 29's.