Have a board that the coil, dual and/or single resister, ecu, switch with relay, installed on, and they are wired all the time. Just run a long wire from coil center to dist. center tower. Have a bypass circuit to bypass the ecu if your dist. is a points dist., or if you plan on using a points dist. someday.

Then all you need is the ground, and fuel line. The starter is wired the same as in car with the battery close by the starter.