Development support to modify ESP32 project reading modbus and exchange data over lora

We need to modify some already existing code for a specific project where we need to basically read data from i2c and modbus RTU and transfer data over lora. The overall code is already existing and need to be adjusted to fulfill the new requirement. project run on a our own sensor board using an heltec processor. Unit is accessible remotely via anydesk. Development environment could be Arduino IDE or platformio. We need a very fast and effective support to achieve the goal in a very limited time.