To do Portal Invoicing for 3 way match PO after receiving transaction but not putaway

The client has a valid business case to make the payment when the supplier ships the material or / supplier delivers the material to an intermediate location.

Even though the actual material is not on our project site, the payment has to be made if the Delivery type is FCA (Free Carrier).

The Invoice Match Option is 3 way and doesn't want to change the same. So the client would want to allow portal invoicing to be done for 3 way match PO after doing receiving transaction but not the actual put away delivery transaction. Please advise on the same