Alan, that's a really neat setup you have there but that still wouldn't work for me. I have a double crossover with double slips on three of the four corners and it all sits on top of a bridge with five of the switch points sitting over and running parallel to the roadways below. Even the Circuitron remote mount was too big. The MP-5 was a godsend as I needed something of around 1" or so in height to not be seen from the bridge entrances. These MP-5's, and the other 63 Tortoises on the module, will report to the central brains of the CTC system so inline LED's weren't a concern.
I do like your linkage system and will file that away as I'm sure something like that will be needed in the future.