As the FOAK on the 400/4 can you help please. The Black 400/4 shows signs of originally being Parakeet Yellow, I can get the correct paint from bikepaints.co.uk but the decals are confusing me. Who would be the best source for decals and is there a definitive set of pictures etc online. ISTR that some models had sloping decals on the side panels and later ones had none ?. Also which way should they slope ? Are there any measurements for correct positioning ? FWIW the frame number is CB400F-1081467 TIA.