LoRaWAN Network Setup Assistance

I'm seeking an expert to assist in configuring a LoRaWAN network with 32 nodes. You will help set up the central receiving gateway and configure node-level ESP32 devices integrated with RS485 sensors.

Requirements:
- Configure central receiving gateway
- Set up ESP32 nodes with RS485 integration
- Work with the following sensors:
- Temperature
- Current
- Ultrasonic level
- Dry contact

Ideal Skills and Experience:
- Experience with LoRaWAN and ESP32
- Proficiency in RS485 communication
- Familiarity with sensor integration and network configuration
- Previous LoRaWAN setup experience is a plus

Please provide your experience and approach.