I have used Kuryakyn for ages on one thing and another...but I have the factory pegs on my R3T, I would not be surprised if they were made in the same factory as the Kuryakyn bits. If you want a unified look the factory ones are the way to go...otherwise...you won't go wrong with Kuryakyn.
With that length and fairly low mount position you will have to make sure they fold up easy. I ground my duallies both sides repeatedly on roundapouts and they are no where near that long.