Mate, i even linked skinflint shops list above. Just choose your shop. Confirm that they are M378B5273DH0-CH9 and order

http://skinflint.co.uk/eu/531278

Update. Im running prime95 blend test with them and it gives me error on that. Either i need to raise voltage some more or need to loose timings a bit. Will update if i get prime 30min stable, which i consider enough.