Is it a 20 Long or standard?
If you can support all 4 sides of the bottom and not rock it back and forth too much, it should be fine. I would wrap the LR
with a wet towel... not only to keep it moist, but to also make sure that if it moves around, it doesn't break the glass or scratch it.
The idea is to have your hands on the base and move them both, NOT the tank itself. Lifting the tank by itself can put pressure on 2 sides alone, causing possible weak-points in the glass. The base can be just a 3/4 inch plywood with some kind of glued on lip to make sure the tank doesn't slide off it. An inch of water should be fine... but regardless, don't shake and bake it too much.
EDIT: Or get a rubbermaid.