85 300 CD rear window - clunk clunk

[mike riemann]

My otherwise cool and unique 1985 300 turbo CD has developed a stuck driver's side rear window. The windown made a "clunk" sound, stuck in about the 1/2 way position, then when I tried to pull it up into the closed position, it came lose and slid all the way down into the slot where it normally lives. I have removed the back seat, removed the inner back seat panel covering window area, and removed an oval access plate (about 8" X %" in size). Now I can see some great looking aluminum "parts"...must be the support frame that is supposed to move and cycle the window up and down. There's not a lot of room to do/see through that inspection hole...any suggestions as to where to go next? Is there a drawing/cutaway of the mechanism available on line anywhere? I'm fairly handy with the chain saw, jack hammer, bent coat hangers, and duct tape, so I'll try a moderate repair unless special Kraut tools are required. Your thoughts are appreciated!