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.
Relevant Skills and Experience
I've been working with Oracle since 1984: including PL/SQL, Forms & Reports, data analysis, modeling, migration, conversion, integration, aggregation, mining, optimization, performance tuning, etc.
Proposed Milestones
R7 ZAR - Excellent references upon request
R70 ZAR - Fully document the scope of the project with time lines, etc - project plan
R700 ZAR - Determine any modifications/improvements to current design, code and functionality
R1800 ZAR - Do the tasks that need to be done based on project plan
R200 ZAR - Test and fine tune, optimize, etc
What Flavor and Version of Linux are you using?
How many Forms, Reports, etc?