Standby Support for MySQL Database Design Queries.

Firstly this will not be a full time job/project as such. I am looking for someone who I can use in a support capacity. For example I may have a particular function that I want to achieve in the development of a MySQL Database. I would send you the details and hopefully you would work out and advise the solution. I would envisage that via a sharable Excel log you would allocate the time spent creating the solution and record it on the log. You could then either invoice for each hour as it is accumulated of simply wait until the project is complete and invoice for the total time. Put simply I ask 10 questions for which you provide 10 solutions each of which take you 15 mins. Therefore total billable would be 150 mins.
Hope that makes sense!