The most expensive part in this assembly is the Coil-ignition.
Some items from this specific schematic: D8ea (ngk Sparkplug), Dr8es-l (ngk Sparkplu, Cap-assy-plug, Coil-ignition.
The Nut,cap,6m/m is the most widely applied product in the KEF300-A3 LAKOTA300 1997 USA CANADA IGNITION SYSTEM ( two times ).