Jesse,
Cool 210!!! Unfortunately, my guess is that it won't ever fly again, and the longer she sits, the less she is worth. I'm a professional pilot and I used to broker airplanes, not to mention owning a bunch over the years. I love 210's, flown them a lot, but this one is too far gone unless you were an A&P and could sign off the work yourself. There's only about 30-some-odd mechanical items that owners are permitted to do themselves (and yes, we've all done something that wasn't on that list.) After a sudden stoppage, even at idle, that engine will come apart at some point, and probably at the most inopportune time, like right after takeoff!!!
I'd put it on Barnstormers.com with everything you've told us and ask for offers. I think it is still five bucks for a listing with pix. List whether it has logbooks for the airframe, engine and prop and the time since overhaul (SMOH - Since Major OverHaul for the engine.) Balance that with a call to Dallas Aircraft Salvage, and see what kind of cash they'll bring when they show up with the flatbed.
Completely agree about getting a 170. Great airplanes that you can learn to fly in and keep for a very long time. It is one of my favorites. Feel free to contact me if you need any questions answered about listing it, the onboard equipment or values.
Chris