Canon EOS 300D Loose primary mirror

Recently, I noticed that when I was taking pictures in a vertical downwards plane, the image in the viewfinder was wobbling. On inspection, it was noted that the primary mirror is partially detached from the very thin metal(?) sub frame, and this in thur is partially detached from the main mirror frame. I would not think it would be worth having it fixed by Canon ($200+??), and I do have a 40D, so I'm not without a camera. I attach a macro shot of the problem. Would spot fixing it with superglue be an option, or would some other adhesive be preferable? Should I remove the mirror entirely before refixing? Any help would be most useful.

Regards, Mike