Besides the axle nut and wheel lugs, there's only 3 bolts/1 nut and the brakeline to mess with on each side. Basically a straight swap.
Brake line needs to be twisted some when you attach it to the hose on the caliper.
When I did the '85 BRAT, I just twisted the line so it pointed up.
For the '88 Wagon, I ran new lines and bent them to keep hose away from the inside of the rim.
Can't really say how original lines would have to be done.
But you'll see what it needs as you do it.
Look in the USRM, or the "Old USRM". Do believe there is a write-up in there.