DF is very forgiving when it comes to soil. But put together a good, well draining mix. Really, any good potting soil from the store will do.

You didn't include the zone you are in. Can the plant be kept outdoors? If so, I would plant it in the ground versus the container. If not, find a decent sized tub, nothing crazy big. You'll need to figure out a way to support the plant as it grows and starts to branch out. There is tons of pictures and info out on the web about DF support. You should get plenty of ideas there.

If the plant is outside when blooming, you may get enough insects to pollinate. I would still help them along and hand pollinate each bloom. They will open up after it gets dark. Once open, get a brush about the size of your thumb and start knocking off the pollen into your hand. Go around to the other flowers and deposit a bunch of pollen into the stigma of the flower. Just keep repeating that with each flower. come morning, the blooms will start to die off. Hopefully in a few days, you will see a small DF starting to form.