Thanks Curt, would love to be able top get this setup running.
I just downloaded the SD1 User Manual from the Ketron Italy site. Check out page 108 in that manual for a section about MIDI transmit options on the SD1. It looks like you should be able to configure it to send out "Right" on whatever MIDI channel you select. By default, the SD40 will receive on Channel 1 so start with that.
Run a simple test. MIDI out of the SD1 into MIDI In1 (GM) on the SD40. You should be able to play a few notes on the SD1 and trigger a sound in the SD40. Once that is working switch the cable to MIDI In 2 (KeyB) in the SD40. It should still play but using In2 will allow access to additional sounds on the SD40.