Robert showed me how to make cart trucks for the cradle, which lowered the storage profile of the glider in the trailer. This was a design used back in the day, and today, with the all metal cradles.
Here is a sample of the simple caster wheel cradle truck.
.... verses my over worked metal one.
After a bit of rework to the cradle, here is the finished product!
New caster wheels,
...... shortened sides, plenty of room on the side to keep the wings from hitting them.