Up for sale is a barely used XS3 radio with RS300 receiver and battery holder.
The XS3 is a great computer radio and works well just as it is or could be a perfect DIY module patient as it has a separate rf board. Frsky or Orange DSM2 make DIY modules and the instructions are here:
http://www.rctech.net/forum/6704258-post6.html
$45 posted.
Thanks for looking.