I know there's an ST at a pull-a-part here in yorkshire, england. I can ask him monday how much, it's got clears on the corners. I'll pull em for ya, I need the wash/wipe mechanism off it, gonna get that tuesday. Hell, if the price is low enough, I may get em anyway, just to have em around.
I'll let you know, in the meantime, pretty sure someone closer to home has a set, but i suppose they are getting a bit rare now.
all the best.
btw, have you contacted Smaay?
Smay's Celi, breaking...Dont know if this guy will post internationally, but found on ebay...
ebay, clear turn indys