There was a good discussion recently about bases.
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Also lots of good advice about PE spread around. In my opinion it's not at all hard to use and the results are great. Look for advice on cutting, bending, painting and glue to use. There's LOTS of opinions out there.
My only 2 bits are to work from the middle out, and to make the corners bends, not joints.
Well, a third thing and there goes George. You don't have to use it all, although this is more true of airplane models than ships. Sometimes enough is enough. I don't know about that Bismark, but these days models seem to be designed to just ADD PE to. It used to involve much more removal of plastic detail than now.