We finally have some official Sony pricing for UK and Spain:

UK (Source: ePhotozine): The A7s will be priced £2100 and the RX100M3 £700.
Germany (Source: Photoscala): A7s costs 2399 Euro (shipment mid July) and the RX100M3 849 Euro (shipment mid June).
Spain (Source: DSLRmagazine): In Spain the A7s will sell for 2399. The RX100M3 for 849 Euro

Preorders are still not available at Sony Europe (but they may be within the next couple of hours). Note that this si the official Sony price. Some dealers may sell them for less!

A7s and RX100M3 Preorders:
Sony A7s preorder in USA/CA at Amazon (Click here), Adorama (Click here), BHphoto (Click here), Sony (Click here), Sony Canada.
RX100M3 preorders in USA at Amazon (Click here), Adorama (Click here), BHphoto (Click here), Sony (Click here).
RX100M3 preorders in Eu at Sony DE, UK, ES, FR, IT, NL, BE, AT, CH, SE, NO, FI, PT.
RX100M3 in Asia at Amazon Japan and Sony Australia.
Sony A7s EU pages (no preorder yet): Sony DE, UK, ES, FR, IT, NL, SE, FI, PL.

The Sony RX100M3 got an official price at Calumet Germany. It’s going to cost you 849 Euro. And yesterday we learned the A7s price is 2299 Euro. But there is still no official preorder option in any Sony European stores yet :(

A7s and RX100M3 Preorders:
Sony A7s preorder in USA/CA at Amazon (Click here), Adorama (Click here), BHphoto (Click here), Sony (Click here), Sony Canada.
RX100M3 preorders in USA at Amazon (Click here), Adorama (Click here), BHphoto (Click here), Sony (Click here).
RX100M3 preorders in Eu at Sony DE, UK, ES, FR, IT, NL, BE, AT, CH, SE, NO, FI, PT.
RX100M3 in Asia at Amazon Japan and Sony Australia.
Sony A7s EU pages (no preorder yet): Sony DE, UK, ES, FR, IT, NL, SE, FI, PL.