What to look for in a 337

[cameronbm]

Well I'm starting to look for a plane to call my own and I find that a normally aspirated 337 fits my mission requirements (high wing twin capable of carrying an 800 lb payload and at least 4 hours fuel). I've read what FAQs I can find on the care,feeding and purchasing a 337 and have reached the point where I would like to delve into the collective net-wisdom for help with a few questions.

Is there a "good" entry model (for example, if I were to look at a C-210, most people recommend the 1972 L model as a good initial entry model as it was the point where the evolutionary changes had jelled into a cohesive whole, yet is old enough to be affordable)?

Any recommendations as to how to separate the wheat from the chaff (also know as how do I know that $xx,xxx 337 is a deal or a dog) prior to committing to a pre-purchase inspection? Am I better off working through a broker like Bill Crews or Tule River?

Many Thanks
Bruce