Engine 2 is the next engine that will be replaced, as it is almost 30 years old. Company 2 is currently in the process of designing the specs for the replacement and they wanted pictures of the current rig on the web page so that vendors could see what they currently have. I put together a tour of the engine on the site which is fun to look at. You’ll find a tour of the left and right sides of the engine at the bottom of the page linked above.