Practically Clueless Newbie Needs Help Getting His Dart Up and Running

Not to minimize, what most are saying, cuz I agree with them, but;
At 115k on it, I'd be tempted to just to a valve job, and a timing chain, and call it done.

And while it's true that the rings or bearings might not be the best, I would be willing to take the chance.I mean what will it cost to find out? Time. Just time. Maybe a gasket or two.

I agree with the above. Take the head off and find a shop to check it out and do a valve job. Even easier, drop in a running used engine.
I did a complete rebuild on a 225 and you don't have the money for that right now.