Factory EFI A body conversion
You've got it all pretty much listed. Are you planning on going OBD1 or 2? OBD1 is very simple but you have to send the PCM off to be tuned, OBD2 requires some extra wiring but is easily tuned with a hand held tuner. You need to make sure your throttle body comes with the TPS, MAP and ICV. The intake has an intake air temp sensor, and 2 water temp sensors, one for the gauge and one for the PCM. The distributor holds the cam sensor it's usually called something else but I can't recall what.
I swapped a 1995 OBD1 5.9 into a friends 1974 short wide dodge. Wiring was so simple and the motor bolted in easily since we replaced a 318 carb motor. Bolted the 727 up to the 5.9 to mark the location for the crank sensor. Cut the notch into the bellhousing and even used the rubber bushing/seal from the Magnum donor to seal dirt from the bellhousing notch. Used the stock harness, PCM, etc. The kickdown cable and brackets from the Magnum fit and work perfectly on a 727, so grab all that if you have an automatic. We even modified the Magnum throttle cable to fit his firewall to keep it all OE and it all fit the throttle body perfectly.
I've also swapped an OBD1 truck to OBD2 so it could be tuned easier. That truck ended up having some butchered dash wiring and that project turned into a nightmare quick.