Hornet exaust plpe spacer dimension

[Dibble]

Hi again chaps could anyone be kind enough to share the dimensions for the lert and right mounting spacers which support the plpes toward the rear. I beleive the part no are 68 2801/2800. Whilst we're on the subject of mountings for the Hornet can anyone supply a diagram for the front mounting brackets pipe to frame? They look simple but fabrication is NOT my strong point! Many thanks to u all. Dave