I have an ignition tumbler that won't turn over with the key. It had been giving me trouble for a week. Kicking myself now for not dealing with it then.

I want to by a cylinder ASAP, even if it ends up being something else. I want to start there.

I found two:
1)$31.98 by Febi[/URL]
2) CarParts.com for $6.50

Any thoughts on which one of these or other options? Is the $6.50 price a red-flag?

Any thoughts on Ken's tool-kit for this job? Probably going to get it just because I use his videos so much.

I have read Ken's diagnostic video and his how to un-stick and ignition. Any other suggestions?