Most of the Gato's had antenna wires from either side of the fairwater to a mast back toward the stern, about where you light gray ends at. They were on tripod standoffs on each side of the fairwater. Rear masting was a tubular upright with a short "T" on top.
Quite a few photos of the setup on various boats on NavSource.
Nicely done on all 4 of them, makes a good break from a big sail build.