Product preparation, dispatch, delivery lead times

[Mayumi2]

We have multiple vendors on our store and each vendor has different ship-out day, preparation time, shipping speed time. Anyone has any idea on which app can fulfil all three needs? We found apps that allows preparation time and dispatch days but not delivery lead time, or only dispatch time and delivery lead time and not preparation time. Can anyone suggest any app or know how to solve this?

Scenario: Vendor dispatch days: Mon and Thu. Shipping speed: 1 day. Preparation time: 2 days.
So a user ordering on Sunday will get the order on Friday because dispatch day is gonna be Thu with 1 day shipping and 2 days preparation time.

We want to display on the product page that the estimated delivery time is gonna be Friday in above case.