Any reason why you're putting so much planning into using the direct outs when going to camera?
Use the 10-pin hirose output and the two XLR outputs on breakaway cables. Pan your boom and lav, left and right for both cameras.
Now if you want questions only going to the transcription device, can't you use a Y-cable from a direct out and one of the outputs and then you have everything?
I'm not 100% quite sure what you're asking, but I think I'm close?