Hi,
I think I could do this project in 1 day. because it's actually a simple task.
Actually I never touch LoRa devices, but I am familiar with arduino programming, IoT, and recently I've helped people solve her problem with NRF52 altough I never use it before, So, now I'm confident that I can help you. just tell me what your problem is and lets find solution.
Best Regards,
Rijal