Great thing about e body front ends and braking systems
You have a lot of options depending on what you want to do and want to spend.
I would first rebuild the front end; ball joints, control arm bushings, tie rods etc.
I used all stock Moog parts which are reasonably priced on my 70 Challenger w factory disc. (your car will already have the disc brakes up front)
Looking at upgrading the brakes; I used the original sized rotors with the smaller inner bearing that was stock on my 70 Challenger (larger bearing started in 1973)
You can upgrade the braking by going to 1973 ebody/body rotors with the larger inner bearing and or upgrade to 1973 specs with the 73 spindle.
I purchased new upper control arms with the ball joint installed that look totally stock (again depending on funds-you could go tubular which reduces weight and gives you better camber adjustments)
Some people go to the 1976 A body disc brake set up because of the larger rotors and caliper pistons (better stopping power)
On the steering end, I believe you can use C body tie rods ends and sleeves if you want a little beefier steering components
You could have your steering box rebuilt to a higher level; Firm Feel has several levels depending on how tight you want to go or again other options are available for steering chucks aftermarket (Borgeson)
Front sway bars are available with a larger size diameter, or just consider adding a rear sway bar (factory and aftermarket units available)
You can go mild to wild on front end rebuilds; your choice
Rick Ehrenberg did a number of great articles on rebuilding and improving Mopar front ends.
Read these articles for for more detailed information:
DISC-O-TECH: Stop on a dime from Mopar Action and Rick Ehrenberg
How to swap in a police firm-feel chuck and get rid of steering slop.
There are a lot of options.