Most important is, will the blade come with a factory edge or did you pay extra for a shave ready edge? If it's factory only there is a 99.9% chance it will not be shave ready.

I agree with the soap. There are many to try. Mitchells woolfat would be a good choice.

You'll have to see with the brush. Pure badger can be very prickly but if you like it then it's right for you.