I'm already on getting these connectors from far-east. I have a few manufacturers for edge connectors, and requested a number of items from them. Since the order quantity for each of them meets or exceeds minimum order quantities, I'm positive to have the connectors within the usual 14 weeks. However, none of the parts has been confirmed to be RoHS compliant, and I will not buy anything that's *not* RoHS compliant. In other words: The 14 weeks start counting after I found a supplier who can confirm compliance, so no chance to have an arrival date in Europe yet.
Also note that I have a large stock (a few thousand) of A4000 accelerator connectors that could be used for your design. I'm happy to sell them to you at cost, because these are not RoHS compliant (they most probably contain lead on the solderpins - my X-Ray measurement device has not arrived yet).
Jens Schönfeld