Not sure if you noticed it or not but those RPM Outlet cams are DoD cams. The Cam Motion cams are appropriate if you are deleting the DoD.
I would delete the DoD and go with the LS3 Stage 2 cam not the LS2 version. The G8 GT has essentially LS3 heads and intake so the LS3 version of the Stage 2 cam is appropriate.
2009 G8 GT
2002 Corvette Z06