rear disc brakes vs rear drums

Hi everybody
I'm at a crossroad on my project. I like the look of 4 wheel discs, but dont like the way i have to put them on the axle for my project car. Would prefer to keep it all mopar and bolt on.

I have used a set of 79 cordoba big brakes on 74 dart spindles on the front. I am thinking of grabbing the 11" x 3" finned drums off the rear of this car. This would end up being a true bolt on to an 8.75 rear including parking brake. All mopar with severe duty drums. Hopefully if i go the drums direction my wrecking yard still has this car so i can get these parts.

Bottom line is i can go with the GM caliper/ weld on bracket setup with jeep or lincoln rotors , figure out a parking brake setup and make it work, or get the heavy duty rear drums off the same car i got the front discs from along with master cylinder and proportioning valve, and have bolt in and go goodness.

Will a well setup heavy duty disc / drum setup off an xtra large barge 79 cordoba fitted to my 67 barracuda coupe work as well as doing the cordoba discs and a custom made rear disc setup in the rear? Or is it just the wow factor of rear discs, and the severe duty drums should stop my car just as good as the rear discs will.

Matt