Here are a few pictures of the final Cab Command transmitter assembly. Case cutouts are done using a CNC machine with spiral bit. Keyboard and LCD are glued into place. Transmitter PCboard is fastened with screws. Antenna cut to length for 433 MHz digital radio. Front faceplate Connections:
Transmitter PCboard:
Front Panel Assembly:
Transmitter connections:
Transmitter:
With completion of the final PCboards for transmitter and receivers I will turn my attention to controlling live steam using servos. So far the live steam prototype works exactly like the electronic speed controls. I don’t know if I will support consisting but it should be technically possible 
I guess I will write up the manual as well. I promise, it won’t be in Chinese, nor a translation from Chinese! Edit: I forgot to mention, the jumper on the 3 pin plug is for battery operation without the external power jack. An external power jack would normally connect to that plug. I use an optional external power jack since I do multi-day testing using a transmitter/receiver test harness to capture any errors during automated testing. If I do offer it as a kit it will be extremely easy to assemble.