Totally understand why manufacturer build in understeer, was saved by that when I first got this car.
I've decided not to shipping the car to the east for my brother for now. As there're a few bits that might get him into trouble when registering, such as coilovers and egr delete race pipe. Change of ownership here doesn't need the car to be checked so those aren't an issue, at least that's the case when I sold a car two years back.
The car is for sale in the classified section if anyone is interested. Will be up on carsales in no time.