It's dark here right now. But I have 1" hub centric spacers, stock studs.
Since these pictures I've replaced the brakes and studs but they're the same stock length studs and still work. You can sort of see the little pocket at the bottom of this picture on the back of my 03 cobra reps.
and this is the only not straight on angle I have of the spacers not sure if it helps you tell how much they stick out..
They don't stick out more than 1/4" probably less. I can't out the nuts on the spacers without a socket. I can maybe get a thread or 2 started by hand but the studs are really set back in there.
Here's them with my new brakes..
Still a bad angle but you can tell they don't stick out much.
Crapatalkin' on the iPhone 5.0