Do you have reaper? I haven't tried to integrate MidiGuitar into Realband but in reaper you just need two tracks
First track with the audio input, no master send, with Midi Guitar 2 as FX and routed to track 2 which includes the Synth. I have two templates if you are interested. I don't think that you can route tracks in Realband I may be wrong on that. But you can record midi and audio in Reaper and transfer it to Realband.


Chris