Can you drill some holes at one end of some 6 or 7 foot pvc pipes, slip them upright over rebar stakes, or t posts in the ground, then string that plastic coated wire clothesline through the holes? (or you could do pvc cross pieces instead of clothesline, I guess) I would think you could even throw some of that lightweigt fake and totally vinyl fencing stuff from Lowe's over the top, and zip tie it to the clothesline cross pieces, and that would weigh hardly anything.
Can you climb a ladder to do that sort of thing?
The ladder problem would come from being a sloped ground and possibly soft soil sinking. Too risky. There is no flat ground here. I have to check motor oil at a parking lot somewhere.
At 6 or 7ft height, I can reach with no problem. I can cut 2 x 4 ‘s into 1.5 x whatever thickness on my table saw. I make mater stakes 1 x 1.5 inches. That would make nice cross pieces. My dad used galvanized pipe for an overhead rack, IIRC, with split 2x4’s.
I have a few section of PVC pipe around here. You could make a ladder-like grid and fold it over like a cattle panel. Hmmm....I see I need to do some thinkingineering.