All of the interior lighting in the Vegas/Axis units are LED. The exceptions are the exterior running lights (headlights, cab lights, brakes, etc.) (not sure if the porch light is LED or not).
Our Axis came with the valve extenders already on the inner rear wheels.
If you are handy you can add the underbody sewer hose storage yourself (see here http://www.thorforums.com/forums/f27...-3-go-820.html
My dealer added the Tornado black flush kit for us--be sure you tell them where you want it mounted!