The duel rear wheels and tires would be interesting. I would widen the rear fenders to cover them. You can make some nice fenders out of old prescription plastic containers. The Distributor can easily be made out of scrape plastic, The wires came out of the caps, sometimes were called "a crab", four on a side and nothing to really show a firing order. Ford used a metal loom that ran along the top edge of the Heads with the wires exiting just above the cylinder it was too, A lot of that detail will be hidden and you may only need a few wires running to the metal loom and then a wire for each cylinder running from the loom to the spark plug.