What kind of 'help'? If you are asking me if I can give you the code for this, no, I can not do that. If you are asking for advice sure I can give you that. So here is my advice:
This is not a trivial project. It will take a considerable amount of time both on the programming side as well as on the RDBMS side. Make sure you and your team have a clear FLR, Milestones with deliverables, etc prior to writing a single line of code. The system that I worked on a few years ago was a challenging project and suffered heavily from scope creep.
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