Down Payment for Investment Measure

Dear experts,

I want to use down payment against an Investment measure (i.e. Internal Order for capital items).

My scenario is as follows: We have the following need for payments:

30% down payment

60% on goods receipt

10% on acceptance of the capital item

1. The down payment should be tracked by Internal Order. It should also be shown as a prepaid item in balance sheet for accounting purposes.

2. At the time of GR, the GR + down payment should be capitalized to AUC.

3. Once the 10% on acceptance is invoiced and capitalized to AUC, the whole asset value should be placed in service i.e. capitalized.

Does someone has any idea of how to do this? We are on ECC 5.0

Regards,

Vishal