Move over Futaba 9C, Hello JR PCM 9X!
You can buy the JR 10X, and the 8103 as a Transmitter Only option from Horizon. The 10X still comes with its fancy case and manual, the 8103 with just a manual. This is ideal for folks who have plenty of flght packs already. I don't know if any other JR transmitters are available this way. You may not be able to order this way with the dumb Horizon website. You would have to call their Catalog department or have the LHS do it for you.