Upload & Sell: Off
I bought one last year on eBay in [mint] condition for about $550 US, before shipping and tax. It's a beauty.
There's one listed now at KEH in [E] condition for $399 US - if you're really looking for one, then this one might be for you. I have a few [BGN] and [E] lenses from KEH, and they're all very nice.
"Excellent" Shows moderate wear. May have small dents and/or dings and slight finish wear. Glass may have slight marks and/or blemishes that will not affect picture quality*.
I must admit that this worries me a bit. I will ask them.
BTW, I just noticed that the Mirex adapter is 350 Euro. It also doesn't sound very cheap to me.