HEI conversion help

1973 Plymouth scamp 318


hello all,

I purchased an external HEI e-core coil and ready to run distributor. I am fairly confident on how to install this setup but I am not sure on what wires and parts I can remove from the engine bay to make it look clean and neat.

A list of everything that can be removed and discarded before installing new setup would be great. Also is a relay recommended for install?