Huh?
AFAIK = As Far As I Know.
The transmission would have one electrical connector for the reverse light switch and a ground regardless of whether it had ABS or not. There will be a second wire harness coming from a sensor at the rear for the ABS (IF the car came equipped with it, not all GTE's had ABS, and if the tranny was previously swapped they may have cut the wires off if they didn't need it).
As for the hard line vs soft line... are you talking about the hydraulic line for the clutch master and slave cylinders? You can't just clamp on oil hose there. You may get a hose made by a local hydraulic shop or you can buy a premade hose from any number of shops which support the MKIII such as horsepowerfreaks.com or driftmotion (dunno the URL).
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