This is a great write-up, I thought I would just make one comment. The great thing about these cars is that there are so many cheap and easy things we can do to fix small problems such as this. The lock cylinder repair is one of those CLEAN, enjoyable and satisfying repairs. Except for the part when you get all done and find out that you still have to go to a locksmith because the soft, brass leaves are too worn and don't engage completely when the key is inserted. For those of us who enjoy immediate gratification and spending no money, never fear. I had a few leaves that stuck out 1-2mm, so with the key inserted, I very lightly used a small bench grinder to grind the long leaves flush with the cylinder again. This worked like a charm for me, the key slides in and out and turns very easily. However my spare key (which looks to be much more worn than the main key) will not work in it, so if your key is in bad shape too you might be out of luck.