Change date based on stock status

Hello,

Is it possible to set a preparation time, either by product category, or by product? So as to define a difference between a product that is in stock, vs one that isn’t.

In the end, I’d like to avoid changing the delivery date of a product each time it goes out of stock, and changing it again if it goes back in stock.

For instance:
Preparation time:
– if in stock: 0 days
– if out of stock: 5 days
Delivery time:
– geographic zone 1: 2 days
– geographic zone 2: 10 days
-> product A in stock, must be sent to zone 1, display “Delivered approx. in 2 dats”
-> product B out of stock, must be sent to zone 2, display “Delivered approx. in 15 days”

Thank you very much. ??