You may just have to shift wher the automatic did,I have heard of this, as for the tc lockup if you can find out how much of a draw it pulls and then wire up a light in the appropriate power usage you may fool it.
Why not go with a hydraulic clutch?
So thats where they all went

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I bought anothe 85 for the bed today,this one is a 2wd, but the rest of it is too solid to scrap and has a clean title,so I may make the roadster pickup a roller and try to sell it,then fix this one up(adding a 73-80 front clip and a stepside bed) as the diesel rig I have wanted for a few years, once I get my 85 4x4 fixed up.
Shane