Getting "everything new" while not impractical might be expensive.
The backing plates off of a Ranger or Aerostar donor would be
a good start (early explorer backing plates won't work).
Also I STRONGLY recommend using '93-up Aerostar drums,
they are the 10" drums with fins and are FAR less prone to
cracking than the Ranger/Explorer or (early) Aerostar drums.
Oddly from some sources the Aerostar drums are cheaper...
the shoes, springs, adjuster drum, cable and guide as well as the parking
brake lever and strut are ALL available new, and likely in stock at any
chain auto parts store
BTW, my personal check on the condition of brake springs is to first look at them.
If the paint is all gone I think seriously about replacing them.
But If I'm feeling short on funds I drop them onto a concrete floor from 4-5feet
and listen to them. Compare an old spring with a new one and you'll understand...
New springs kinda "ring", and they bounce into the air, old crappy ones don't.
AllanD