I'm terrible sorry, this isn't a caving question.
I'm going to be doing some industrial painting in a few weeks that will involve ropework. I'll be painting high structural steel and some machinery. Much of the area is inaccessible from lifts, so I'll be coming down from catwalks or roof trapdoors or climbing the steel. This is kind of a new thing for the contractor so he's letting us figure out our own methods of reaching everything.
I'm not concerned about anything except how to hang comfortably for an extended period of time. We're painting with sprayers so there will be plenty of moving from spot to spot, but I'll be hanging off and on for 12+ hours a day.
I clearly cannot simply hang in my caving or climbing harness; any suggestions? I thought about making a seat of some sort that I could attach to the rope with an ascender but I'm not sure how easy it will be to move all that crap (seat, sprayer, hose, self) up and down the rope.