Although it was a bodge, that was actually quite a good bodge as bodges go, and shouldn't have done any damage whatsoever.
The point about the stem having to be a 25.4 to fit a 1 1/8 steerer is that classically the steerer walls were 1/16th thick, so you need a 1" tube to fit inside the 1 1/16" one.
thats confused me a bit again lol
So do I order a new 1 1/8" quill threaded stem? or 1"?
I apologise - if you order a 1 1/8 stem, they will send you one with 25.4 stamped on it. That's because what we call a 1 1/8 stem is a stem for a 1 1/8 system, i.e., one that measures 1". Similarly your stem with 22.2 stamped on it (7/8") is called a one inch stem. Don't worry, it always causes confusion!