I have a request about creating a new module. Preorder module. This module has a feature like below :

Periodically my store is importing some new products from overseas. Because of this, the shipping will take 2-3 months before it reach my store. I need a module which can enable customer to preorder the products (which is still on its way to my store), of course if the preorder also limited to maximum number of products that my store bought. The preorder products might be also has several options (size, age, or etc).
The preorder only need to pay 50% in the beginning. After products status are ready in my store, an email will be automatically sent to my customer who already preordered. The message will be the invoice and might be added a custom message.

Can you give solutions to my needs?

Thank you