Magirus Fire Brigade 170 D11 Overtaking

Hello first of all, I am new here and I tried to read everywhere how it is ordered around the old Magirus. I would like to get a fire department and make a WOMO out of it to drive with the family here and there. Got an offer —- loaded on 7,49 tons 26000 KM already H mark but no more tuv. Jetz my question! Where there are Rep manuals or similar Who makes new brake pads (the old ones are glazed) Where there are any parts (Mechanics) ) Greetings Andi