I don't think you have to do anything to the clutch pedal. Just make sure you get the visible part of the brake shaft really clean before you try to slide it through the "clutch shaft tube". I haven't taken one apart yet but when I do it will go back together with LOTS of antisieze on the brake shaft. I like antisieze and you don't have to apologize to me, I like WD-40.
Isn't your second cub just a little small for any quality seat time?