I've ordered new calipers, brackets, hoses and pads and began digging into this yesterday and quickly realized the last person to touch these (last licensed in 98) didn't assemble the driver side correctly. I immediately noticed the caliper could move around while still bolted on to the spindle and one pad was not wearing evenly. It appears there should be something on the pins that attach the bracket to the spindle to tighten everything up and keep the pins clean. Rubber boots maybe? Mine had none. Also upon partial reassembly I noticed the lower mount hole for the caliper bracket pin is oversized and causing the free movement on the caliper and possible uneven pad wear since it is kicking it cockeyed. Is there a standard procedure for fixing this? Brass bushing or something?
I found a caliper rebuild kit on a major parts distributor's website and am wondering if that is what I need?

Also, how does everything get used? The black basket looking thing is my biggest question but other parts would help too! I believe the springs are for the pads, which have already been assembled to the new caliper with new hardware that came with the calipers. Any guidance would be helpful as I do not wish to buy parts that are not needed.
Lastly, are the pins for the pads and the calipers the same? Need to order another set for each caliper I think. Thanks again!