Thinking about replacing my leaf springs, and I need your advice.

MOPAR brethren: My 1974 Duster has its original rear leaf spring set. Sometime before I bought the car in 2019, a previous owner installed a set of Monroe coil over rear shocks to restore the ride height to the back end of the car as the factory leaf springs were sagging over time. I'm now contemplating rebuilding the rear leaf springs (something I've never done before), but I can also buy a new set of leaf springs from ESPO Springs and Things for $220.00. These are five leaves, instead of the factory original four, but ESPO says that they'll restore the original ride height and will ride as softly as the original set. I'm looking for a very soft ride, not a performance car in any way. Just nice and soft. They also said that I could get rid of the coil over shocks and install standard shocks in the back, which I'd love to do as I like the original look. What do you think? To me, rebuilding or re-arching the original set seems like throwing good money after bad. Please weigh in with your opinions - especially if you've ever bought leaf springs from ESPO. Thanks!