Lynden,
I think they are the same part numbers as the 600EW. The 350EW spares list gives c9253 as the 'rear footrest hanger'. I an not sure if this is in reference to the rear position of the foot rest compared to if foot boards were fitted, or they mean they were used as pillion foot rests. This c9253 is the main foot rest hanger for the 600EW. Looking at the 350EW Sports, the foot rest hanger looks short. There is a shorter foot rest hanger used on the 600EW as a pillion footrest (part number unknown), and I will provide a drawing of that too. You will have to decide which is most appropriate for your machine.
I do not know how the foot rest hanger attached to the frame. The foot boards used a cross tube. But the foot rest hanger can not attach to this, so another part shape unknown, must have been involved. The standard spares lists that I have are silent on the subject.
PM me an email address that I can attach drawings to.
-Doug
