Just when things seemed to slow down, they turned a little more drastic!
I have found something that eliminates the need for the eye mechanism, which will hopefully be here by the end of the month. I removed the unnecessary gears and cut out that part of the gearbox, which allowed me to put the remaining part of the gearbox in backwards, freeing up the space for an open cab. I have taken measurements of the original TV model's cab using the production references, and hope to begin building an open cab soon.
Modeling the LNER (and some Thomas stuff) in OO Scale.