I’m not sure about the sheets as I’ve never brought any down from the states, hopefully someone else will be able to help you with that.
As for spices in Cotacachi I notice that blends are tough to find. Things like Old Bay or Pumpkin Pie spice. Most of these can be made yourself from what’s available if you know what spices to use and what the proportions are. I also have a tough time finding chili powder. They do have a powder made from aji (a local pepper), but the flavor is different than what we’re used to back home. Most of the basics are readily available though: Cinnamon, ginger, basil, oregano, rosemary, thyme, turmeric, cumin, etc.