I agree with Ted, start with the Fletcher. If you're already leaning towards a 1/350 Bismarck, then chances are you're leaning towards 1/350 overall.
Later this year, I'm doing a 3-model story on building the Fletcher in 1/350 scale. One will be an OOB Tamiya kit, the second is a resin Yankee Modelworks kit, and the third is a tricked out Tamiya or Trumpeter kit.
The purpose of the story, aside from giving you everything you can possibly want to know about Fletchers, is to demonstrate the various levels you can achieve with your builds, from basic OOB to practically scratchbuilt.
If you have any Fletcher questions, don't hesitate to ask. I know this guy who wrote a book on them awhile back, and he's got lots of detail photos and drawings.
Jeff