I have never seen a TRD wide body in person, but I have seen one with 285/30R18's on 18x10" front and 335/30R18's on 18x13" rear. I would personally shoot for 315/30R18's on 18x11" front and 335/30R18's on 18x12" rear. That would really give the car some mechanical grip. 
Later, Steve
Later, Steve