Delphi XE, help needed for Soap, SSL and encrypted XML

Hi,
we are in need of technical help to achieve secure comms using secure Soap (certificated) to a government web-service.
We have to send and receive encrypted SHA256 xml content as the payload using SSL transport.
Is this an area in which you have expertise?
If so, we are prepared to pay for consulting/help if a working result can be achieved.
If you have expertise here, and are able to offer guidance, then we can send real code and proper full description of our problems.
Thanks,
Justin Graham.
New Zealand (GMT + 12)