VBA Excel - Sort a daily delivery manifest into groups based on complex rules - excel

Question

I am trying to come up with a way to sort my Excel-Table. I wrote a very basic VBA to do this when it was a random sort only. Now there's complex parameters/rules I have to meet and it's way outside my skillset.
The problem: I receive a daily file with a list of items via shipments like the example below. The list can have as few as 1 and as many as 24 items. I have to sort these by restaurant.
Example Original List
ITEM SHIPMENT
Oranges 1
Apples 1
Grapes 1
Pears 2
Pork 3
Chicken 4
Rice 5
Peas 5
Beans 5
Water 5
Corn 5
Milk 5
Eggs 5
Salmon 6
Tofu 7
Juice 8
Cheese 8
Salt 8
Pepper 9
Onions 10
Oats 11
Barley 11
Kale 11
Chips 12
The items need to be sorted out to 6 restaurants and there are complex rules:
Overall Rules
No Restaurant can have more than 1 item from a shipment
No Restaurant can have more than 4 items
Sorting Rules
Restaurant 1 always gets the first two items (Items 1-2)
Restaurant 2-5 evenly gets the next 16 items (Items 3-18)
Restaurant 6 gets the next 2 items (Items 19-20)
Restaurant 1 and 6 then evenly get the last 4 items (Items 21-24)
If there are more than 6 items in a shipment (more items than restaurants) the extra items stay in the warehouse.
The Overall Rules override the sorting rules. For example in our example list Restaurant 1 cannot have both Oranges and Apples since they are from the same shipment so the sort changes.
Example Sort
Restaurant 1 Shipment
Oranges 1
Pears 2
Rice 5
Kale 11
Restaurant 2
Apples 1
Peas 5
Salmon 6
Salt 8
Restaurant 3
Grapes 1
Beans 5
Tofu 7
Pepper 9
Restaurant 4
Pork 3
Water 5
Juice 8
Onions 10
Restaurant 5
Chicken 4
Corn 5
Cheese 8
Oats 11
Restaurant 6
Milk 5
Barley 11
Chips 12
Warehouse Items
Eggs 5
Looking at it as a whole now I'm not even sure this is possible and I have no idea how to go about doing it. If anyone has any input I'd love to hear it. Thank you so much for your help.