Sorry but I am a little confused, it says you have a "2010 Classic" in your avatar so please enlighten me as I was under the impression the Classic only went to 08 and the Standards went to 09 and the Roadsters started 2010 the Tourings started 2008 and took over from the Classics.
To make it more simple the Classics and Touring came with FootBoards the Standards came with forward mounted pegs and the Roadster has the pegs mounted further back.
So which bike is it you have and want to fit the Roadster pegs to, not that it matters much as they are all interchangeable with only the ABS bikes causing any headaches, if I am Guessing Right you have a Standard and want to fit the roadster rails and pegs, the only hassle would be the Standard model brake master cylinder may need a bracket or modification to fit it to the Roadster rail and the brake line a few gradual bends put in it.
On the gear side you may need a different shift rod as I believe the Roadster one is a bit longer than the Standard's one but that wont be hard to source