ODM to ODM & OPM to ODM Internal Sales Order and Costing

Can anyone help me to explain this.

Internal Sale Orders are between 2 different OUs

1. Organization : ODM to ODM [Average Costing]

OU1 : Create Internal Requisition

OU2 : Create ISO (Price Freeze = Cost of OU2)

OU1 : Receive items at which Cost ?

2. Organization : ODM to ODM [Average Costing]

OU1 : Create Internal Requisition

OU2 : Create ISO (Price Calculate Price = Price list of OU2)

OU1 : Receive items at which Cost ?

3. Organization : OPM to ODM [Average Costing]

OU1 = ODM and OU2 = OPM

OU1 : Create Internal Requisition

OU2 : Create ISO (Price Freeze = Cost of OU2)

OU1 : Receive items at which Cost ?

4. Organization : OPM to ODM [Average Costing]

OU1 = ODM and OU2 = OPM