1. I used an Exedy full-face heavy duty clutch. got it all done when the engine was out, & i think it was sourced through Western Clutch Services if i remember corredctly.
2. Fuel feed line, fuel return line & vapour line. the vapour line is the smallest of the 3, the feed line is the largest. sorry, i dont know the diameters off the top of my head.
3. yep, the tacho should work, it might need a bit of fiddling if youre running coil packs, but mine worked okay. the auto electrician would know best if he's wired up engines like these previously.