The brake is from like a 98-99 R1, and the 320mm rotor came off an aprillia 1000 from memory but these rotors are a standard size and theres many different styles to choose from. If I put that PDF at 66.7% and hold the actual part on the screen in the trace out, the scale looks perfect. You will also need a disc spacer, which unfortunately I don't believe is possible to make by hand. Drewpy has a whole thread on this conversion, that's where I was getting info/inspiration.