YAJ Vanquish lips are shitty. I just received my lip #2 from mr.streeter, it was more expensive but much better quality, and it incorporated the stock mounting tabs
He mentioned lately lips are being delivered broken/damaged and the postal office is beginning to not compensate due to it being a fragile item, I was fortunate enough to receive my lip in one piece
If you did have the time/money to import bumpers/aero (not worth it IMO) it would be at your own risk and you would have to personally cover any repair fees for damage