Here is what I did to get rears on my Rline
I bought some that supposedly fitted off Ebay
They didnt because the bit that fits over the black plastic wheel surround is to narrow.
So I carved that piece off and with a heat gun I massaged the outer piece to fit closer against the surround trim and just used two screws to hold them on
Like this
Had to cut the pice i 4th pic off and heat the bit in the third one to move it across to match the existing body screw
They do however look quite neat and sort of factory