This is something I have considered. Not a bad idea for the XK but not sure about the WK. There is just not much of a quarter panel on there. The corner of the bumper, fender, and taillight is what would take the abuse. If you wanted to make corner guards for the WK then you would have to incorporate the fender into it which would just complicate the design because of all the angles. But that's just the conclusion I came to. Nutserts are definitely the way to go though, seems to be what all the good companies do.