Tension spring is the same as well on the column lock...the one for the old lever we just eliminated..........No problem matching everything up.........
When (If) you get a chance (the ol' "Chicken Parmesan Cooked from Scratch on the Anniversary" routine might garner you a late night rendevous with the missus ), please post a pic or two of the column components. I would like to see the rearmost section and the set screw access hole. It would be nice to be rid of the "push to remove key" feature. I would like to see my options.
Of course, you did say it was your 30th anniversary, so we might be hearing from you very soon.