Multi-caming merged clips using audio

I'm working on a music-driven piece.  The video was shot on Red Epic while the on-set audio was recorded separately and delivered as .wav files.  The piece has actors performing to a pre-recorded musical guide track.  I'd like to synch the audio and video using the merge clips function, via slate; then I'd like to align those merged clips to the pre-recorded guide track that the actors performed to.  Ideally this would be done using the audio waveforms synching function.  But it seems I can't multi-cam the merged clips this way.  I'd like confirmation of this from someone who isn't as new to Premiere as I am; and perhaps another workflow suggestion would be greatly appreciated.

I'm an editing newbie but this was the very first task I needed to do, i.e. align multiple video clips with a single audio track. My setup is similar. I'm shooting with a Canon 70D, which breaks up video into 4gb clips, which are continuous and easy to align end to end. But the 70D like the 5D only shoots for 30 minutes continuously, so a second or two is lost hitting record again. My external audio was recorded continuously with a camera mounted Tascam (like a zoom) with a line in to the camera. So, in theory, the audio should be the same on the external audio and the audio associated with the video clips, which probably helps the software identify the identical wave forms.
I found that I could roughly align the video clips based on the audio wave forms and then "synchronize" the audio as shown in the video (Merge clips automatically using audio waveforms | Adobe Premiere Pro CC tutorials). I found that this aligned the audio perfectly but separated the video from its associated audio track. But it's easy to select the video and snap it back into alignment with its audio. While it would be nice to have everything merge automatically, using synchronize sequentially did not take much time.
Hope that all makes sense.

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