I have never took one off but just feeling them on other's units, they do feel solid. You will definately need another strong person for the other side. I do not think three would be necessary but what the heck.
You may be able to build some type of high saw horse type things to place it on once you disconnect the cables. Then you cna open it up, lay it on the horses and begin taking the hinge off. Then just slide it away from the unit and do your repairs. Then just reverse.
2006 HW256 (previous pup)
2013 Chevy Tahoe
Equalizer WDH 1000#