Item availability message on order confirmation for Buy in Advance purchases

Anyone know how to include a message on the order confirmation that will state when the item is expected to be in stock? It could be the same message that appears on the product detail page when an item is available for backorder/pre-order! I've just started allowing backorders on a few items and it seems like a good idea to note the ETA in the order confirmation as a reminder for the customer.

It would also be great to include the ETA with the item listing in the user's cart.


Jennifer Zint