The tank thing is pretty common unfortunately... Seen 3-4 zx6r track bikes with that issue. My own bike had it for a while too... But yeah, just get the little rubber pieces and you're good.

Also, add some tank protectors to it... Hitting/splitting the tank is another known issue of the model. Not as bad as R6s but it happens and for $100 the protectors will give you lots of peace of mind. wet4u.com.au will have them in stock if you get stuck. Might as well ask Paul/Wetty to go over the bike if you're a bit worried as he knows those inside out.

Other than that, welcome to team green!!