Exporting 5.1 and Stereo embedded in Quicktime from Premiere

I'm delivering a movie to a distributor and having a hard time getting the correct audio embedded in the QT. Their specs are:

Audio must be embedded in the movie file (5.1 surround, if available, and stereo L/R - 8 tracks, each track assigned to its own channel and labeled accordingly) Stereo L/R or Lt/Rt must be stereo paired in the movie file. See below for audio specifications.

CH 1: Left

CH 2: Right

CH 3: Center

CH 4: LFE/Subwoofer

CH 5: Left Surround

CH 6: Right Surround

CH 7: Stereo L (or Lt)

CH 8: Stereo R (or Rt)

They told my mixer to configure sound for multiple mono. I'm confused in regards to the track type/output assignments when initially creating the sequence. When I set a track type to mono, it looks like the output assignment assumes that it's 1 of a dual mono stereo pair. So do I set the first 6 track types to adaptive? And then the last two tracks as mono for the Stereo L-R and then pan each accordingly?

Does anyone have experience with embedding 5.1 and stereo in a Quicktime like this?

Thanks.