See https://docs.google.com/document/pub?id=1WZRVn5LCqtGgt6S5YrL_w6fi5ov_KvcttJNNO2VfdoQ& pli=1
Since this is a pretty small project, the fee is preset: $25.
Make sure you can deliver solution that meets all items in the checklist. You won’t get paid even if one item is not satisfied.