Yes, stay left. Actually, from what I have read they force everyone left (even those lining up for A&E. Not everyone knows this so they try and go right, then find out they need to go left and it causes even more of a traffic jam.
So stay left, as left as you can be.
That's what I would do.
Keep your morning, say 9 - 10:30 free to do Fantasylany via standby. Peter Pan, Ariel's Grotto, Little Mermaid Ride, Its a Small World. A 10:30 ish FP+ for Enchanted Tales, then head over to Haunted Mansion, check standby time and ride standby if not too long then if you don't need your FP+ for Haunted Mansion, grab lunch at Harbour House and move your Haunted Mansion FP+ to something else. Thunder/Splash etc.
Good luck.
Well, you're kinda stuck.
Unfortunately I do not know the current status of the path/hub construction but I don't think it would be any easier for your to walk through Adventure Land etc to get there.
You want to try some variation of this depending on what is open at the time: