Sailrite has a kit to make your own. We raised ours on the backstay using the main halyard as the hoist and attached the tack to mid boom. The sail worked somewhat well but not great. I had always thought that if I could attach a double riding sail head to the backstay raising it with the main halyard, attach the tack to the boom and each clew to a davit it would have worked really well ending up as a V off the stern.

Sailrite has a video on their riding sail but I don't like the way it works as it keeps the boat always off to one side of a swing. I would think that in windy conditions it could cause a lot of stress on the anchor.

Switching to all chain would also cut down on the swinging by quite a bit.