Posting an XML SOAP message in HTML

I have some XML that when I send it to a SOAP server via a third party program, returns the proper result.

I don't have .NET availability or other SOAP library tools available to use the WSDL to compose and send the message.

Is it unrealistic to send the XML myself? I have HTTP Post (with SSL) capability.

What would be the wrapper that I'd put around the XML below so that I could use an HTTP Post (with SSL) to the SOAP server?

<?xml version="1.0" encoding="UTF-8" standalone="no" ?> 
- <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://auth.ws.harrisonpub.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
- <SOAP-ENV:Body>
  ... snip...
  </SOAP-ENV:Body>
  </SOAP-ENV:Envelope>

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