Buy ignition wire from Scale Dreams or online for computer board wire. I forget the name of the wire right now but there's a Oriental type person in CA selling it on ebay in a bunch of colors. Scale Dreams also sells PE wire looms. You can make the rubber boots from telephone wire (I prefer AT&T wire) by stripping the insulation (rubber boot) from the copper wire. There was also a post about a missing dizzy that was excellent - Evergreen rod with half round glued to the rod and drill 9 holes (for a V8). I'd give you the post but searching this forum is not my forte.
You could also take the kit distributor, drill it out, super glue the wires in, or, get some aluminum tubing in a couple of sizes and make your own.
I would never waste my money on pre-made distributors (sorry manufacturers).