Any interest in doing a Mercer - Elk loop starting at the Mercer trail head and finishing at Elk? It would require two vehicles to do the shuttle back to Mercer after. Ride time would probably be in the neighbourhood of 3.5-4 hrs with a good 30-45 minutes of that being sub-alpine ridgetop riding. Plan for a total of 7-9 hrs from Vancouver if there's apres involved.
I'm not a human in real life, I just play one on the internet.