Oracle ERP Migration

As you know we have several locations (Print facilities) and everyone of them are using different tools for Inventory management and Billing (ERP). One of the locations we are using is Oracle ERP 12.1.3. We want to consolidate and use Oracle 12.1.3 for some of our locations as Inventory management and Billing systems. So as part of this consolidation we want to move the data from other systems into Oracle and use both modules within Oracle. In other words we want to migrate from other ERP systems into Oracle ERP. So we are looking for resources who have experience in ERP migration into Oracle. They need to have full knowledge on the Oracle ERP data structures, definitions, all the screens, Data loading tools and configure the ERP tool. Additionally, they need to work with other functional areas in extracting the data, mapping with Oracle structure and also custom configure for the plant. We will be doing this Plant by plant and each plant could be different at the source side