Update. I started the tear down today but quickly stalled when trying to remove the driving disc. First I tried with a gear puller then tried using the JD method of inserting 1/2 bolts in the disc keyholes and turning against the interior clutch facing. Neither worked and I left the bolts under tension for the night. What about using a torch to heat the driving disc where it attaches to the crank?
The clutch appears to be completely burned up. Even after all of these years there was a strong burn smell and the pulley body was filled with black. The outer facing had a big chunk missing however the clutch lever snapped over nicely when I loosened the adjusting nuts.
Does it sound like any part of this assembly will be salvageable? But first I need suggestions about further disassembly. Thanks for the help guys.