Agreed with Scott!
I wrote a training plan for West Butt + Cassin Ridge for this past AK season using the aerobic training (Specifically WTD pack carry progression) from the Uphill Athlete 24-week Expedition Plan, my own Strength & Condition program from The Alpine Training Center, and “simulator” outings (much like you’ve listed in your own programing).
I found my training to be spot-on for the objectives and we were able to summit the First time on the WB in 8 days, then again via the Cassin Ridge a few days later. We did not have great weather, but were able to move quickly which allowed us to acclimatize under mediocre conditions.
A few other things, often over-looked when training for a Denali WB Adventure:
1) Learn to be really good at winter camping.
2) If you are fit enough to summit from 14K and back in a reasonable time, you will have more opportunities/weather windows to summit – and thus more time to do Cassin.
3) The sleds crush people. Go in there ready to crush the sled.
Good luck!
Jason