'62 troubles

[ChuckyC]

I have two problems that I need help with. I own a '62 C10 short wide, my first question is, some time ago I purchased a heavy duty headlight wire harness so that I could use Halogen sealed beam headlights. When using this harness I have no low beam lights, after switching back to the original harness my low beams came back. Will using an OE harness with the halogen lights burn up the harness? Second, I have a 700 R4 transmission to replace my Turbo 350 and it is completely electronic, I am told that I can purchase a wiring harness to by-pass the torque converter, where can I get one? I also need a mechanical speedometer drive for this same transmission. Any help would be appreciated very much.