Hmm....I would say go for the BT-to-RS232 as suggested above.
I know they've become popular of late for network admins to be able to wirelessly reprogram/reflash layer-3 switches, routers, modems, etc.
But I don't know how the N800 would interact with something like that.
Hacking will probably have to be done.

Another way around it would be to have a small computer setup next to and plugged into the receiver while running a small webserver that can host some small web pages for control. Or you can just SSH into the computer over wi-fi and run it all from the command line. Or use VNC to remotely control the PC.