Can I take you up on this please. It seems Reynolds, who are the company who were to supply Sven cycles, are taking a very long time in respondong due to being exceptionally busy.I might be able to help there if it falls through...
I have some 450mm 1-1/8" ahead steel steerer tubes, and can cut the groove and fit a clip easily enough.
All the best,
I will PM you. Thanks.