Use the search function as there are plenty of threads on this. You've dodged a bullet if you were able to get the key out and still can get to position and back again. I used a tool made from coat hanger wire. It takes a bit of jiggling but when you have your new tumbler in hand you can visualize what you are trying to do. As mentioned, a kind dealer may help you out but they take tremendous risk in doing so, and I can't imagine why they would. If it jams on their watch, they are out many hours of shop time.

glenmore
1991 300CE
2000 C280
1990 LS400