Hello,
As you know I am expert in Alfresco development. Also I am leader of team great Alfresco developers. We are ready to do any job based on Alfresco.
I believe, your tasks will be simple for us, because we already have done a huge number of different customizations for Alfresco Share + integrated Alfresco with different third party applications (like EtherCalc, EtherPad, JavaPowUploader, FlexPaper viewer, Tesseract OCR) and we have implemented a lot of additional features.