Well Well, Oh Well....

What kind of tube, is it rigid pipe or flex poly? And can you get the lid off the wellhouse or do you have to bend it and pull it out the door? Or is it all outside?

"What I'd do" I would not use a cherry picker because you can't get much "stroke." Figure a way to built a tripod, even 2x6s etc. "Rig" a small hoist and a a couple of extra "dangling" ropes so that you can pull it up, then tie hitches around with the ropes and release the hoist, then leap frog. That way (with a ladder) you can get maybe 8' per "stroke" That will greatly lesson the re-riggin or as some of us say, re-niggin