Power brake conversion

Hi Guys,
I got done with my wife’s Duster and been driving it this summer to shake it down. Julie drove it and would like some mods to make it more comfortable for her. I did a factory disk brake conversion and all new system but it has manual master from factory. She would like power brakes. Other than getting a new master and booster, is there anything under the dash that is different too? Any recommendations on where to get the parts?
Thanks

A-bodies had a mounting bracket that bolted to the firewall and use a different brake push rod. You don’t have to change the master cylinder either, factory used a different bore diameter but it’s not absolutely necessary.

DoctorDiff sells the Bendix style booster and bracket.

Bendix Style Dual Diaphragm Booster for Mopars