Formula-Driven Automated Spreadsheet Build

I have a process-flow diagram and a starter worksheet whose cells are already annotated with the logic that should fire at each step. I now need that logic hard-wired directly into the sheet using nothing but Excel formulas—no VBA, no macros, no add-ins, just clever formula chaining... (Budget: $10 - $30 USD, Jobs: Data Analysis, Data Management, Data Processing, Data Visualization, Excel)