Thank you for the opinions and advice.
The older I get, the more I feel like I should enjoy every day as much as possible.
I often find myself in construction zones and remote so-so roads, so durability is a bit of a concern. The area between OKC and Edmond is the biggest mess in creation (Rick, you probably know what I'm talking about
).
Having to replace the IMB, oxygen sensors and suspension components evey few years would be worth it, but I'll talk to my shop about those extreme maintenance schedules and costs.
I do have a great Porsche dedicated shop that does excellent and reasonable work, so that's a plus.
I think I've found my first possible candidate (silver '99 with green interior.... Lots of nicks and scratches, two dents, but everything works and drives great... $4,700) so I'll let you know what I find out.