If you can borrow a couple of sheets of sheet aluminum checker plate, sat 3'x3' or so, put the rough side down and roll from one sheet to the other. Makes even a dollly roll easy on carpet.
Or you can save your back, hernias and liability insurance and get a moving company. Most will give you an estimate over the phone. My wife bought a 286 gal salt water aquarium (1" thick glass) that weighed in at just over 700 lbs. Cost us about $150.00 to get it brought in from our garage with a moving company.