Don't get me wrong, I would love a lighter and faster bike. I have a 2017 fz10 as a daily rider, and man oh man what an R1 must feel like on the track....BUT, the RC is perfect for me, holds that mystique of the RC line, and is meant for the track. I have a ton of spares too. It's enough for me for sure. Honestly your money best spent immediately aside from the maintenance items is suspension! Good front pads too. They are about as fast a modern 600's honestly just heavy, so they take some work to throw around. But it's an RC!!!! Mine has been pretty bullet proof so far knock on wood.
Oh, and do some track days asap! Get a taste first, but you'll be addictive. Most track organizations have race license schools attached to them so check that out too. Good luck brother, have fun!