You're taking the approach that I would probably take as well. Check everything (tie rods, idler, pitman, bearing loosness, etc...) and then just fix what's wrong.
Certainly doing the whole job is a very good project and can be fairly simple, however, it can also be a real knuckle-busting experience. There's lots of encouragement in this thread, which is fine, but I wouldn't take it to mean it's an automatic cake walk. I would hate to have you get half way into it and have it sit there because the job was bigger than you thought. It's the taking apart phase that's typically the "challenging" part (obviously), but from a safety standpoint (yours and others on the road), you have to do a thorough job assembling as well. Take a realistic approach to it and it'll be a more rewarding experience for you.
Hopefully you'll pinpoint the problem and get it back on the road where it belongs with little impact on the pocketbook. Good luck.