PCB Design with STM32 MCU and

I need a PCB designer (KiCad) for modify original design of a STM32 Nucleo64-Board(F302R8/F303RE) in order to add 2 MAX1487 on USART1 & USART3. I already have a working prototybe as a "hat" form factor for the nucleo, so the purpose of this mission is to merge our prototype schematic into the Nucleo schematic and supply a complete KiCad project ready for production (Gerger + steps to reproduce)