I'm looking forward to seeing what you do with your bike and all this carbon. Should be something special. It's all the silly little things that rust. Nuts and bolts the little metal anti rattle plates in the brake callipers etc. Even the little bolts for my brake reservoir cap which I replaced with stainless bolts are now starting to look a bit tatty. Cheap stainless and not marine grade I guess.
But so many little bits looks like one big bit
Amazing how these makes things look so tatty. My rear subframe has the usual bits starting to appear where the brake reservoir is and the frame showing. I need to replace this one day anyway as it's slightly out of shape where the bike took a drop. Not much but it's a niggle. One day I will get around to replacing all the nuts and bolts with TI as this seems to be the only thing that's doesn't rust. The bike lives outside so gets a hard time with the weather.