SWAT + MODFLOW Coupled Watershed Modeling (Hydrology + Nutrient Load Simulation)

I need help building and calibrating a coupled SWAT + MODFLOW model for a karst watershed.

Main goals:
- Simulate river runoff, Total Nitrogen (TN), Total Phosphorus (TP), and Ammonia Nitrogen (NH3-N) loads.
- Calibrate using daily data from 2021 to 2023.
- Two monitoring stations involved.
- Provide full modeling and calibration source files (SWAT & MODFLOW project folders).

Special notes:
- No solar radiation data in meteorology input.
- Subsurface geological data not available.
- Fertilizer input: rice farmland, 150/100/50 kg/ha in April/June/September respectively.

Calibration Requirements:
- Water quality stations (Qingshuipu & Shikan): NS > 0.7
- Runoff stations (Luodian River & Chishui River): NS > 0.7

Please ensure all deliverables are provided. Results are for private use and not for public publication.

Google Drive with input data: https://drive.google.com/drive/folders/14gSIRtsp67h2koaIWvrI0jK1y7yAmWrQ?usp=drive_link

Let me know your experience with SWAT-MODFLOW, and your estimated timeline and cost.