It turned out, that Methos really does not have as much free time to spend on the project as we would need. We decided we would give the freelancing server another try, but this time, we will be much more picky. We have created 3 simple tasks, which will show us how the developer understands the requirements and how is she/he able to incorporate required changes.
For each contestant we will create a separate repository into which we expect the results delivered.