Little Advice - Rust

[ktomi]

First post here. Just bought an 04 CPO with 16K milles. Got everything I wanted and a little more, in the way of rust. It came with rust on the lug nuts, rotors and brake calipers. They ordered the lug nuts for me, but the calipers and rotors will still be rusted. I plan on painting the calipers, and possibly the rotors.
- any advice on painting the parts. Should I just scrub the rust offand leave it.
- I read about the rust warranty but I think that only covers the body.

It bothers me more and more every time I look at my X5. I did try to get the dealer to fix if for me but they would not. I thought it would be easy to fix.
A little help. Thanks.