I went to kicking horse with 18 people with a bed for each person...few queens and singles but everyone had a place to sleep
We booked with
http://www.lushmountain.com/m/lush_m..._mountain.html
To be more specify the "Valhalla"
http://www.lushmountain.com/m/lush_m..._valhalla.html
Very secluded.. the walk was short to the mountain about 5-10 minutes. We could ski back to the chalet but you have to know where your going...
It is a bit pricy though it was 1700/night for the week we went which was after family day..but worth the money
I'm sure you can fidn something similar since your group is a but smaller than mine