I was able to put a floorjack and a board or 2 up under the tank and get it out...it balanced rather nicely on the jack...
If you have an electic fuel pump, the tank does pump out real nice that way to...less than a gallon left easy...more like a quart...
I had the same problem and took the tank out...after the vapors were gone and it sat in the sun for a while, I used heat on the drain plug and as soon as it had the initial movement, it spun out by hand...hope yours is as easy.
Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.
Pro-choice, that's a LIE, babies don't choose to die!!