NEX-5n and 6500 images later

This is great. First, I'm amazed that you actually shot all those frames on one battery. Have you seen the accessory grip that provides double the battery life?

http://www.gadgetinfinity.com/ownuser-battery-grip-mig-snx5nb-for-sony-nex-5-5n-black.html

Also, you are going to have to provide more details about the custom remote connection on your camera. Did you install it? What does the connection to the controller look like and is it also custom made or modified?