Sachs SX1 spare parts

Hello to all scooter friends Yes I am proud owner of a “China bull” – after vain search of a workshop and numerous derogatory comments about the brand, which do not help me, I try my luck here. I have a friend who can make quite good, but I find no suitable spare parts. I bought the scooter used and it would be a pity to have to give it completely, just because the push button falls off the turn signal and the exhaust leaks – i f so you are my last way out. Does anyone have any idea where I get these parts?: Switch unit left with 8 pins and the following occupancy (best including brake lever): Exhaust or at least a triangle seal for the exhaust (photos in the appendix)