Embedded Firmware development for IEC 104 protocol conversion to cloud server using Renesas Mcu+EC200 module

I need a compact yet reliable firmware package that runs on a Renesas micro-controller and speaks IEC 60870-5-104 end-to-end, pushing device-status updates through a Quectel EC200 cellular modem straight to our cloud endpoint... (Budget: ₹37500 - ₹75000 INR, Jobs: Arduino, C Programming, Documentation, Electronics, Embedded Systems, Firmware Development, Microcontroller)