Interop suggestions

I'd like to propose the following changes to the WSRF Interop:

1) Provide a standard means for each participant to obtain a unique "fresh" printer resource to test against
  Each participant provide a URL to a printer factory type web service with the following request/response format

    request:
      <SOAP-ENV:Body>
      <wsrf-pr:createPrinter/>
      </SOAP-ENV:Body>

    reply:
      <SOAP-ENV:Body>
        <wsrf-pr:createPrinterResponse>
           <wsrf-pr:printerEPR>
           <!-- epr content goes here -->
          </wsrf-pr:printerEPR>
        </wsrf-pr:createPrinterResponse>
      </SOAP-ENV:Body>

2) The non WSRF operations follow the wsrf pattern of a single document in the SOAP body
   Specifically,  section 3.1 Print_Job, request and response  as a  suggestion:
<SOAP-ENV:Body>
   <wsrf-pr:Print_Job>
     <wsrf-pr:job_name>My First Printer Job</wsrf-pr:job_name>
     <wsrf-pr:document_format>text/plain</wsrf-pr:document_format>
     <wsrf-pr:Base64Data>SGVsbG8gV29ybGQh</wsrf-pr:Base64Data>
   </wsrf-pr:Print_Job>
</SOAP-ENV:Body>

<SOAP-ENV:Body>
  <wsrf-pr:Print_JobResponse>
   <wsrf-pr:SuccessStatusCode>successful-ok</wsrf-pr:SuccessStatusCode>
     <wsrf-pr:job_reference>
          <wsa:Address>
           http://www.WSRF-Examples.org/IPPprinters/Jobs
          </wsa:Address>
          <wsa:ReferenceProperties>
            <job_id>1</job_id>
          </wsa:ReferenceProperties>
          <wsa:PortType>wsrf-prw:Job</wsa:PortType>
     </wsrf-pr:job_reference>
     <wsrf-pr:job_state>pending</wsrf-pr:job_state>
  </wsrf-pr:Print_JobResponse>
</SOAP-ENV:Body>

... and Same for Send_Document
 <SOAP-ENV:Body>
  <wsrf-pr:Send_Document>
    <wsrf-pr:last_document>true</wsrf-pr:last_document>
    <wsrf-pr:document_format>text/plain</wsrf-pr:document_format>
    <wsrf-pr:Base64Data>
      Q29uZ3JhdHVsYXRpb25zLCB5b3UndmUgcmVh
      Y2hlZCB0aGUgZW5kIG9mIHRoZSBTY2VuYXJpbyE=
    </wsrf-pr:Base64Data>
  </wsrf-pr:Send_Document>
 </SOAP-ENV:Body>

 Should we have the response for Send_Document ?  Or should it be oneway?