These trucks used Chrysler's electronic ignition. So if you have spare parts for other Mopars i would take them with.

300 miles in a truck like this will take you a long time to get home. I would guess 7 hours. Maybe more. Think 50-55 and lots of gas.

67 Charger 383 auto
75 Dodge CNT 800 CAT Diesel
2012 Ram Crew cab 5.7 4x4