The plan:

-Take the Blackcomb lifts up (backcountry ticket required -- I believe this is about 40$).

-Ski down to Wedge Pass (elevation ~1340m).

-Skin up the south face of Wedge (summit is 2892m).

-Ski the top of the south face (600 or 700 meters). Hopefully, in nice spring corn snow.

-Exit along the ridge above Rethel Creek (this could be a bit messy -- steep trees, alder choked roads etc).

Avi gear/training required.

Also, you should be a strong skiier, as the south face is fairly steep (~ 35 degrees .. 'black diamond') but not as bad as it looks.

I plan to go at an easy/moderate pace (I'm not fit enough to go any faster) so it will be a long day. 

If the conditions aren't 'bomber'  I will reschedule.