Congratulations!
You'll have problems with finding an aftermarket exhaust, Jardine stopped making them for the R3T and Zard only makes them for the "normal" Rocket. It's a minor annoyance with the R3T, we're different enough that the aftermarket is smaller.
The good news is that with a new map for the ECU you can take the machine from 80-something to 116-117 horses with no other modifications. Just did that on mine and it is like a new bike, especially when you need to rev and go fast.