swap to electronic ignition

i have a 72 dart with a 225, ive seen the pertronix kits for 90$, i know they had electronic ignition in 72 so i figure i can buy the electronic ignition distributor at pep boys for $50 and use my mopar ignition module from my v8 and just wire it up. I havent done this before so i was curious before i buy anything if it sounds right.