How to create a Work Order where component and Assembly item are same

Summary:

Salvage the material from Item returned by client.

Content (required):

In our business we salvage a lot of material from item which is returned by Customer .

In System , rather then returning whole material from original item by WIP Return , we consume item returned by Customer to create new item created with a new Serial number.

In Cloud, when we create a Non-Standard Work Order , we are unable to enter Component same as Assembly item .

We are unable to use Rework Work Order , as we need to create new item with a different Serial number .

Is there any solution for this requirement?