Many may have been the wrong phrase to be honest although I have seen a few people doing the conversions, even the person I sold my old set of Heljan sides to when I did a 57 conversion can't seem to help me.
Howes have none at all and the MMP ones have run out. I'm pretty much up a certain creak without a paddle, haha.
If you ever need to let them go please do let me know, I'd be eternity grateful.