I like to level up the cage where it's going to set , then dig a shallow hole just beyond where the pan will be and that's where the bait and lure go. I'll then set the cage over that and get it brushed up good , cedar boughs are my favorite but anything can work. I've used shingles, dry dirt and peat moss at different times to cover the wire floor. One trick that I think helps eye appeal if you have snow is to spread peat or dirt out fan shaped in front of the cage besides covering the wire floor, that really stands out. I hang an attractor that my granddaughters & I make in the back of the cage. It's furry and has google eyes that move, it's on a swivel so the breeze moves it. Take a double fist size wad of grass with a few feathers mixed in and toss this "nest" in the very back. I put a stop stick across the inside of the cage just past the pan up a few inches. Scatter some feathers in front of the cage and going into it, squirt cat urine that you've saved in front and going into the cage. Hang a feather or tinsel on a swivel out from the cage if you choose. If there are any cats around you'll catch them.
I like to leave a bucket with a lid stashed with extra dirt and feathers somewhere around so I don't have to carry everything each time. Brush loppers are very handy when setting up. It doesn't take much time to set them up like this after you've done it a couple of times. Buy Mercer's Caging Bobcats dvd, that will be the best money you spend trying to learn how to catch them in cages. Most of what I do came from his ideas.