In October 2007 I added a Key Cheek Kit, again from CMK, so now it looks like this:

I also replaced the Behringer Foot controller with 2 swell shoes from CMK.
In January of 2008, I shipped the toe piece runner board to Robert Hoppe, who installed a set of toe pistons, 10 in total. I connected these to a CMK MIDI Key Scan Computer board (MKSC-1A) and then configured them through the Hauptwerk Software. This has been well worth the effort, because, not only is the workmanship by Robert superb, but I can now use toe pistons for couplers, advancing the registration sequencer, and also for percussion effects and sostenuto when playing Theatre Organs.
Here are some photos of the components:
TOE PISTON ASSEMBLY BEFORE INSTALLATION

SCANNER BOARD IN PLACE
MOLEX CONNECTORS WITH INDIVIDUAL WIRES

CLOSE-UP OF PISTONS SHOWING THE WONDERFUL CRAFTSMANSHIP

THE FINISHED PRODUCT - SORRY ABOUT THE WIRES!!