ISO Creation enabled with Invoicing in AR.

Dear Gurus,

   We have a new requirement with the business , where we need to fullfill the requirement through sales order process.

   Within Internal discussion with team, I got suggestions to propose either Normal Sales Order Process, or ISO , As the requirement is Transfer of Inventory items between two OU's .

           We are through to the setup process of Normal Sales order Process.

When Coming to ISO, We are unable to get the setup details.

Please help me in getting the Setup Details of ISO.

Also yesterday when I am checking the community, I found an Interesting Document which discusses about the Drop Ship Sales. Which i feel somewhat Suitable to my requirement ,As my Requirement also deals with Purchase order creation and Receipt creation.