You can't do it all.
Kayaking out of Ketchikan would make the best use of your time especially with only 2 days in Anchorage, getting to/from Whittier. Are you coming into Seward or Whittier. Perhaps do kayaking before your arrival/departure?? A compromise in Ketchikan would be to walk to the Totem Heritage Museum- authentic poles unlike Saxman or Totem Bight. Could spend an hour there and get something out of it. In planning the Native culture museum in Anchorage- see what activities are scheduled and plan around them perhaps. Not usually much wildlife spotted on kayaking trips.