How to offer more than 1 pick up location?

[hshbakery]

I'm working on a site for a client who offers a pick-up location other than her home address (where her bakery is).  I'd like to change the "pick-up" location to reflect the storefront she uses, but the default address for pick-up is her home address (the address associated with her Shopify account).  I've looked at the Manage Preferences area and don't see a way to change this.  

In addition to this, I would like to potentially offer more than one location that the customer can choose from...she also sells goods at the Farmer's Market so some customers pick their items up from her there.  So ideally, in the checkout area, it would be 3 options:  "shipping", "pick up at <coffee shop name>", and "pick up at <farmer's market>".  

ETA:  It should be noted that all of these items being sold are "orders" and not stocked inventory.  She is using the site to set up an ordering system, with limits in place for each item.  The items will be ordered by customers 2+ weeks in advance and picked up at a specific location on a specific day.  Perhaps this changes the way I should set things up?