Dave,
Be very careful with replacement cases. Reading on this forum, if you search for it, replacement of the case is not as straightforward as you would think. It has been done, but from reading on this forum, a very delicate operation. On the forum somewhere, I remember reading a Good Post, with pictures and instructions. I will Contact you if I find it. I have just purchased a New Key from " Keys & Fobs", as I had a problem with mine, as well as it looking a bit chatty.
TerryR