You only need one 12V wire to your distributor. You do not need to use the wire from your starter, it is only for points type distributors. Do not use the resistor wire at all - just cut it or tape it and tuck it somewhere out of the way.
In my opinion, the best place to tap a fresh 12V wire that works off the ignition is from the fuse box. There is a spare male terminal labeled "IGN" in the bottom center of the fuse box that supplies full 12V whenever the key is in the "Run" or "start" position. Just plug in a new wire there and run it through the firewall to the distributor + connection (the one closest to the front of the car).
The three wire plug from the distributor plugs right into the cap - it will only fit one way so it won't go on backwards. The tach wire goes on the terminal behind the + connection.
Then you're all set.