I have looked into the center caps. There are 2 down sides to them. 1. they have to be machined down to fit, they are too big. If they are not done right they look funky and some have a clear outer layer that gets messed up. 2. the plastic center caps need to be heated to curve a little or they fit all funky. I have yet to find the perfect thing to go there.
And as far as the trunkEmblem SVT, yes it is way too big.