This isn't accurate at all. While the brakes are brembo, the seats are Recaro, the springs are eibach, the axles are Carraro, etc. None of them are simply off the shelf components. Every auto manufacturer has parts built by other companies. That's literally the car industry. Ineos just sed names that are easily marketable and recognizable.
Toyota uses Bilstein dampers on their TRD Sport and Off Road models, but they aren't generic Bilstein shocks that were sitting on a shelf, they are purposely designed for the vehicle.
There's nothing "modified" or "mods" about it.