I finally found some time to get this beast set up with ERRCo cruise and RS4 using a factory Lionel T1 ROM. I had a bit of trouble setting up the tender shell as a TMCC antenna when it dawned on me that the drawbar is connected to the shell, (making it a bit unique from all my other 3rd Rail setups). When connected to the engine, I had erratic control and response, but luckily no rocket blasting instant conventional mode. Keen eyed observers may see the antenna laying in the coal pile, which will get buried before weathering.
Here's a couple quick iPad in one hand, CAB-2 I the other vids...