[Ski-me]

I also did this job a few times. Yes on the jack in the middle but it's hard to balance.

I used two sets of come-a-long straps on each side. Used the jack to support in the middle, loosened each strap evenly, dropped tank a bit and repeat.

I was able to walk the tank down by myself several times with a 1/2 tank of gas.

Several times means: leaking new tank, pump not working, pump not working.....discovered my electrical connector was soldered so re-did connection.

Lesson learned.