Welcome Bob!
If you can get some pics and post them, we could give you some more feedback.
Point...
Knowing what I know now, I would run from a 968 that sat for an extended period of time, especially outside. The list of items that can be degraded by age, weather, animals chewing away, and just normal use is so long and expensive that it's hard to imagine the upside. There's so much rubber in the form of o-rings, seals, gaskets, suspension, and you have to assume it's all just about ready to turn to dust. And just painting a shot exterior will be 2K or more. I believe that it would eventually cost less to pay more now. And you would be driving it. Subtraction by addition.
Counterpoint...
Since you have rebuild a 356 and a 914 you have lots of experience, and you know Porsche prices, in general. And if you enjoy the rebuilding process, then maybe a well-sorted and running 968 would deprive you of the fun of bringing it back from the brink. That sounds sarcastic to hear myself say it, but I don't mean it that way. I truly can appreciate this aspect, because my dad rebuilt 1931 and 1932 Chryslers for decades, chipping away, tinkering and puttering in our garage at home and in a rental where he kept a 1931 Waterhouse Imperial. He enjoyed that type of restoration and has lots of patience. He was happy as a pig in mud working on those cars. I, on the other hand, wanted the cars to be finished and running and would get exasperated.
Try to get some pics if you can. There will be no shortage of opinions here, for sure! <img src="/forum/images/smilies/968/smile.png" class="smilie" alt="" />
Cheers!
-Scott