Thank you to all.
I will be attempting my version of the PVC rigging. I purchased 3 inch sched 40 PVCs. 10 ft long and i plan on cutting them down to about 7 feet. I purchased end caps (4) and will be protecting the ends with them. I plan on using 1.25 inch U-shape fasteners and drop the bolts with washers (total
from within the pipes. I will see if my 9 y.o.'s skinny arms will reach the holes. if not, I will probably rig them at the end of a thin rod and drop them and try to tightened them from the bottom.
Will see how they work out.
thank you again for all the constructive recommendations