Hi,
@fxkhang, and welcome to the forum!
I think the best way to handle this is to see if the place where you stay on the night of September 28 will hold the pack and poles for you until you return five days later. If you spend the night before departure and the night after arrival at the same place, I think it is very likely that they will keep them for you. As you get closer to the actual trip, you might want to call ahead to nail this down, but since there are so many accommodation options on this segment, I don’t think you’ll have trouble finding someone willing to help you.
Good luck and buen camino!