[sugarwood]

I'll take a different angle, and dig a little deeper.

You've been looking for a 911 for over 10 years ?
That means there is an issue.
Something tells me that you don't really want a 911.

You pestering owners of neglected cars that will cost you more than a nice $30k car?
Why are you bottom feeding? That is the question.

Are you interested in a car, or are only looking for some sort of OCD caliber "steal of a lifetime"?
My guess is that you seem to have gotten caught up in buying a steal that you've lost sight of your goal.
Why did you never buy a car in '06, when they were a dime a dozen? That is the question.
When the cars were $12k, I have a hunch you offering $6k.

You're all over the place, so it is unclear what your goal is.
Are you looking to flip a car and make a quick buck?
Are you looking for to fulfil your Porsche dream and own a nice clean 911?
Are you looking for a restoration project?

These are all very different things.