I would like to set up a payment method for my customers, which requires them to 

1. pay 50% immediately and
2. the remaining 50% at the time of delivery.

Motivation: The product is pretty high priced and I'l like the customer to really have already skin in the game from the order entry date, because we will also invest on the cost side considerable when manufacturing the product. And by this he's sort of co-financing the production. The rest should only be due when re received the delivery, because only then he has the benefit. And ordering might be 2 month ahead of delivery, because this time is needed on customer side for the work he's using our product for.

I didn't find a way to configure the part about payment at delivery. How would I do that?

best, Achim