The tank was heavier than yours, Doc, no joke.  An old Oceanic 150 with 10" thick glass.  Ok, maybe not 10", but still... nothing to shake a stick at.  And there were stairs to contend with.  But, we got 'er done.  And the rewards were bountiful.  Beyond anything I could've hoped for.  I kid you not, I was worried that we might get arrested for grand larceny on the way home.  One very, very happy woman right now.