if you want a one piece, the one chippy has would be the way to go, i guess.
if you want the two seprate ones, like mentioned for the f models, you can make them from the original clamp you have. if you look at the underside of the clamp, you will see that if you cut the middle section out, it will leave you two seprate caps shaped just like the F ones.
if you are good with a grinder and file, it wont look like something you just hacked up. it will look identical to the stock pieces. just cut, grind, file, and polish. quick, easy, and, best of all - free. did it on mine before i went to clip ons.