Ahead stem or quill? I have a 40/50mm ahead stem you can take off me if it's what you're after. Can't remember the exact length.
I also have some risers that I used to use for polo. Nothing special, they have been cut down a bit. You can have those for the price of postage if nobody else comes up with anything.
If Poots doesn't end up taking the stem and it's 25.4 then let me know.
If Poots doesn't end up taking the stem and it's 25.4 then let me know.