I haven't seen many companies that make them but this one looks solid. The height is a concern but I'm more focused on if you think it will stay locked and steady from the swingarm if put in the exact same position(s) each time for both scope and red dot.
http://armsmounts.com/shop/mounts/a-r-m-s-19-acog-throw-lever-mount/
http://armsmounts.com/shop/mounts/a-r-m-s-17s-throw-lever-mount/