Expedition Time for VM
This plugin adds any availability info on the "thank you" page after an order has been submitted.
It gives you an opportunity to notify your cusotmer that he will receive the goods in a particular amount of time. Yyou have 2 different messages: for an order where all products are in stock and for an order where some are out of stock.
Buy something and go through the checkout to see the demo. Don't worry, the store is demo - you will NOT actually buy anything.