you could ask max at planet discs.
Great bike! The joy of fiberglass is you can keep adding or removing it until you get the shape you want. You just need time and motivation!!!!! For me that rear disc is spoiling the good looks, drilling some holes to match the front ones might help.
Haven't used the Kosos myself, but only heard good things. Will probably be going with them when I get going with my build. Seems like a quality brand. I believe Acewell uses similar setup too. Remember to set the valve clearances to .005-.006, not down to .002 as the FSM says. At least that seems to be the collective wisdom of the 1100f.net forum Too tight especially on the exhaust side risks burning the valves. Sent from my iPhone using DO THE TON