Transfer between Inventory business units.

 Currently we transfer inventory between 2 different inventory BUs using interunit transfers.  This involves 2 GL BUs.  We would like to transfer inventory between 2 different inventory BUs where the GL BU is the same for both inventory BUs.  Since the GL BU is the same we can't do an interunit stock request.  We need to enter a stock request and be able to ship it out of 1 BU- creating shipping paperwork etc.  We would also like to be able to receive it in the other BU - something similar to doing interunit receiving.  What is the most effective