KiCad Schematic & Connector Revision

I need to refresh an existing KiCad project by updating the schematic and then reflecting those changes on the PCB. The primary task is to add and remove several connectors and headers that have changed in the latest revision of the product... (Budget: $2 - $8 AUD, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, PCB Layout, Prototyping, Simulation, Troubleshooting)