Add Additional Fields for Woocommerce Local Pickup

The site is [login to view URL] , it is running a Wordpress Woocommerce installation, and it regards a business with two locations. When a user selects Local Pickup at checkout, I want there to be an additional mandatory field that asks the user which of the two locations they will be picking the product up. Also, I would like the user to select a pickup time and date. The two locations can be found here, and I will need the ability to add more locations in the future as needed: [login to view URL] The pickup times will need to be within the following hours listed below. We will need the ability to change these as needed (though it will always be the same across the locations). Also note, we will need at least *14hrs* to prepare each order. I say 14 hours from the time the order is placed because an order at the end of the day can still be picked up in the morning the next day. The customer may select a later time if they desire, but that later time may be no more than 7 days (a week) from the date the order is placed. So, a customer CANNOT order today and have pickup 8 days from the date of order. Here are the hours of order pickup availability: Monday – Saturday: 8:00am – 7:00pm Sunday: 8:00am – 3:00pm