Hi
Here is an experienced PHP, mySQL, SQL, joomla, database expert. Having 7+ years of experience, you can have an idea of my work from ratings of my previous employers at freelancers.
I would like to tell that there could be developers who can bid less per hour rate but mostly lack quality and delivery and most of them can charge you more time.
You would surely found me honest in reporting time and I will suggest you the best optimized solution.
Although my rates are 25 USD per hour now a days, but I am OK with AUd as well :).
You requirement is quiet high level, I would like to know in a little more detail. If you are available we can discuss.
Let me know.
Thanks