Sorry this is a really bad rendition but hopefully helps.
For early entry the left side/Frontierland and Adventureland are not open. I don’t look on that side but I marked it in red that it’s blocked off.
I have used the paths in blue many times. We always head to Space Mountain 1sr. You can’t cut through Tomorrowland terrace. They scam MB’s for resort guests and then hold on bridge to Tomorrowland for that area and hold at next “spoke” for Seven Dwarves MT and fantasyland,
I’m not sure exactly where the well is but I think it’s not accessible at this time. However once everyone runs for a ride it shouldn’t be too crowded that time from early opening to regular opening,
Hopefully someone else has better info. At least you know the current opening procedure. I was there 3 different trips in January and again in March, They have held us in the same basic spot for a while now(same as 2021 trips).