I've been working with Oracle since 1984: including data analysis, modeling, migration, conversion, integration, aggregation, mining, optimization, performance tuning, warehousing, etc.
Excellent references upon request
Since the job description and scope is so general, my quote is also general. After a fully documented description, I'm sure we can come to a mutually agreed upon price or hourly rate.
NOTE: It is not how much you pay by the hour; it's more, how much are you getting per hour ...
I will most likely be the most expensive bid; but I will give you much more per hour that you are paying for...