I'm not sure that there is necessarily a better way - I bolted up the springs as an assembly - i.e. I already had the axle bolted on. I know that the wisdom is to tighten the bushings with the car on the ground but for the life of me, I couldn't figure out how that applies to the u-bolts since they don't move. As I already mentioned I did the backs first - that was a bit of a hassle - mostly actually because I hadn't chased out the threads. But, I did find it easy enough to do it as an assembly.
Tony, the front is really easy - hardly worthy of pictures. However, the hardest part for me was the bushings in lower A-arms. They're not difficult - just very tight. What I did was put the a-arm in on enough of an angle to get a bolt in one end. I then used a putty knife and a carpet knife to push the other end with bushing past the flange on the frame. My body guy actually reassembled mine so I didn't need to reinstall but had I needed to I would have either used a plastic putty knife or duct tape on the metal blade to protect the paint. After that, it's easy.