I'm an average guy and I do my own. Taking them off is not too bad but putting one back on can be a bear. One of the hoists in my shop is a side by side and this leaves a piece of the rack on either side that I can sit on while working on this stuff. This allows me to pick up the door and set it on my lap while I align the door pins. Otherwise you may need two guys to stabilize that big beast while you get the upper and lower pins aligned. It probably goes without saying but roll down the window first as it will facilitate lifting it. Once you have it off just set it on a fender cover or it's equivilent and lean it against the wall. If you just happen to be working on a wagon then you can lay it in the cargo area in the back.

Mark