If it were me, I wouldn't do back orders for international orders. And if they have pre-orders they can do it but it will be shipped and billed with a hold of two weeks when there is a large amount of pre-orders for that one order. But this would only be on the pre-cuts. if they want yardage. then they need to pay upfront for the yardage to be cut and the shipping will be when the two week period goes by from the first pre-order getting in. you can also send emails when the backorder or pre-order items get in. kinda like connecting threads does. hope this is clear as mud for you.