In any walking scenario, You are really only walking a 7-day reservation to secure your check-in day.
Once you have your check-in day within the 11+7 window, you modify that 7-day reservation by removing the not-needed before-check in days, and then add the additional days. With 10 days, you would modify a few more times adding the extra 3 days to your initial 7 day reservation.
We are staying for the first time over Christmas. I was considering a club level one bedroom at Jambo House for the extra fast passes. It doesn’t look like I can even string six days together right now so I think that ship has sailed. I agree, most things don’t need walking. We will end up going with a one bedroom standard at kidani. I think I’ll be fine.