Hi Audi Fans, My poor 87 5kcst got hit & run recently and the R Front fender along with some trims were totaled. I am in the market for a good used RF fender for my Audi. I was wondering how much would be cost for used 5kcst fender?? If I couldn't find one from a 5kcst, can I use the one from a 5k instead? Are the 5k & 5kcst fender interchangeable? TIA Albert Ng '87 5kcst