I suggest forget 5 cameras

I suggest forget 5 cameras, focus on your main camera. You can put one aerial wide one in the loft, but I’d stop there.

As for backtracking in front of the bride, I suggest handheld, orsteady-camif you have one. You want be able to run backwards pulling dolly behind and effectively controlling the shot.http://www.faqvideo.com/bride-aisle.html