I think if I were the coach and absent the info given in camp/preseason about who is playing well and gelling together, I think this is what I would try:
Mazur - Larkin - Raymond
DeBrincat - Kasper - Kane
JVR - Danielson - Appleton
Rasmussen/Soderblom - Copp - Compher/Tralmaks
I'm a bit wary Copp is going to be fully ready to go to start the season though, and Mazur + Danielson will probably start in Grand Rapids. It would be my actual preference for one of MBN or Lombardi having an unreal camp to steal that first line LW spot.