I put a Leupold Ultralight 3-9x33 on my 7mm-08 Mountain Rifle. I think it tops off this rifle perfectly...not too big and heavy, but still plenty of magnification. It just "looks" right on this rifle.
I originally had had Nikon Buckmasters 3-9x40 and, like you, thought it was just too big. It completely defeated the purpose of a short action, lightweight rifle.
The Leupold Ultralight is a little pricey, but I think you would be very pleased.