SQL-Driven Power BI Dashboards

I have sales, customer engagement, and operational data split between a few SQL databases and several Excel workbooks. I need those sources merged into a single, refresh-friendly model and visualised through interactive dashboards in both Power BI and, where appropriate, Excel... (Budget: ₹400 - ₹750 INR, Jobs: Data Analysis, Data Modeling, Data Visualization, Database Administration, Excel, Microsoft Access, Power BI, SQL)