Nandric, There are two missing parts that I can determine.
One is a small screw located on top of the tone arm wand behind the fixing knob. I believe a ground wire attaches here, under the small screw.
Also, I think there is some sort of bent metal part that goes in this location, but I don't have any photographs as reference to check this.
Finally, there is another small ground wire located in back of the carriage assembly which is currently broken and I'm not sure where it is supposed to be attached. I could send you a picture, but don't think that is possible through Audiogone.
One is a small screw located on top of the tone arm wand behind the fixing knob. I believe a ground wire attaches here, under the small screw.
Also, I think there is some sort of bent metal part that goes in this location, but I don't have any photographs as reference to check this.
Finally, there is another small ground wire located in back of the carriage assembly which is currently broken and I'm not sure where it is supposed to be attached. I could send you a picture, but don't think that is possible through Audiogone.