It looks like Rockport ME is doing OK in the voting, if you haven't voted yet please vote for that location. Mid Coast Main is their biggest hole in New England. Also under suggestions for the the next round please request Bath Maine, that's the jumping off point for Boothbay, Georgetown and New Harbor.
If they were to do Rockland, ME (Hannaford being the natural location), then they could probably do Topsham, ME at the Hannaford near I-295 Exit 31.
Yes, it's not on US-1, but it would also serve I-295 and in particular the Topsham connector offers a fast route to US-1N to the east
Also, rather than Bath, ME there's a Hannaford at Cooks Corner (east of Brunswick, Brunswick address) 5 miles West of Bath and from there ME-24 heads down to Harpswell, Orr's Island and Bailey Island.
Topsham Hannaford - Bailey Island - Georgetown - Boothbay Harbor - New Harbor
- Topsham Hannaford: 153.6 miles
- Rockland Hannaford: 148.1 miles
Cooks Corner Hannaford - Popham Beach - Georgetown - Boothbay Harbor - New Harbor
- Cooks Corner Hannaford: 148.9 miles
- Rockland Hannaford: 147.6 miles
(for Bailey Island would have the option of charging before or after so not an issue)
Topsham Hannaford - Ellsworth Hannaford (US-1): 118.7 miles
Cooks Corner Hannaford - Ellsworth Hannaford: 105.2 miles