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No that's great. But get an alum block as well

Yes. You might want an alum block as well, or sceptic pencil, in case you get razor burn, or cut yourself "which you most definitely will" ;-)
Oh and aftershave lotion/balm

As far as I know, carbon is harder and more difficult to hone, but will hold an edge longer.

I do believe that you will need a 12000 too, but don't take my word for it.