Two pieces of 3/4" EMT, about 3-4' long, bent at 90°, with some sort of plastic or rubber cap on each end.
Attach to ladder with appropriate sized muffler clamp or U-Bolt.
Drill holes through both pieces at about 4" intervals to accommodate a lynch pin or bolt to prevent the sections from twisting and allow width adjustment.
If you don't want adjustability, maybe just a single piece of 3/4" EMT bent 90° at both ends.
Thoughts?
Attach to ladder with appropriate sized muffler clamp or U-Bolt.
Drill holes through both pieces at about 4" intervals to accommodate a lynch pin or bolt to prevent the sections from twisting and allow width adjustment.
If you don't want adjustability, maybe just a single piece of 3/4" EMT bent 90° at both ends.
Thoughts?