Rebuilt item from an inventory item

Summary

We need an approach to support rebuilt item from an inventory item

Content

We have bunch of items which can be rebuilt by suppliers (examples : mechanicals parts)
Those items are first purchased as brand new products then, after years of consumption, they are sent back to supplier which rebuilt them.
Product has a consigned value (examples 50$) which is applied on the PO to rebuilt it
We would like to know what is the best practice on Fusion Cloud to support the process from procurement and track the item values in inventory. We would like to track items values and qtys for new items, consigned values and rebuilt items as well,