I followed OTRAMM's front and rear suspension install vids. Granted, I also have the Slinky setup in his video, but I'm confident it'll help you. Having the springs out is the perfect time to handle your radius arms too.
DVS includes instructions. Are you missing those?
What helped me was to install the the front of one arm and leave the rear unbolted. Use this arm as a lever to pull/rotate the axle to help install the opposite side.