I built the cockpit from 2bricks "Ultimate System-Scale Millienium Falcon" MOC onto my 75257 Millenium Falcon and it looks GREAT! I made a slight modification on the control panel adding the hyperdrive
SDCC exclusive - Millennium Falcon Cockpit | Brickset: LEGO set guide and database
LEGO MOC Millennium Falcon Cockpit (CX90000) by VorpalRyu | Rebrickable - Build with LEGO
I built the cockpit from 2bricks "Ultimate System-Scale Millienium Falcon" MOC onto my 75257 Millenium Falcon and it looks GREAT! I made a slight modification on the control panel adding the hyperdrive