Let's start with the paddle, held by a clip on the Station 63 bulkhead.  I'm all for having a paddle,

but I prefer to keep mine SHORT and in the baggage area, out of the way but easily reached.  

Note the static port for the airspeed indicator just below the paddle shaft, and the classic

and simple system for latching the side window closed, as shown in Dwg. # 452-2. 

There are many possible places for the "EXPERIMENTAL" sign, but this is one.