Yes, the sequence isn’t in order. I figured “why struggle to reach behind the radiator to install the door & cable that live behind it?”, so I did the control door before installing the radiator itself. Not hard to install; there are 5 AN3 bolts holding it all together. The Book says to use some spacing washers QS to maintain a 1/16” gap between the radiator and the supports behind it, but I didn’t need to add any washers. On the other hand, if you look down on the front gear leg, you’ll see another double-clamp PIA to attach the lower radiator hose.
The duct tape is there to provide a nice clean line for the RTV sealant around the edges. It’ll look better when I take it off.