I'm with the OP on the scope though, the scope is the worst place to shave weight. It's where you give up the most performance by trying to go light. A great scope like that is worth the extra 4-5 ozs.
I couldn't agree more. When I did my ultralight I decided on a max weight of 18 ounces. The one I chose weighs 18.1 and is very good in low light.