Here is another setup for a lefty.
Keith partially quoted my note to him. The part that got left out: Harrels is redesigning the rings and will return to production. I can not give you a firm date. The fellow originally making them is no longer employed there, but the tooling is in place. They will be an official Harrels Precision product when re-introduced
My request would be 30mm offset with a 11mm dovetail, like the picture!
Pete