Dear Sir,
how is your application will be? Let me know the details.
I have do several IoT projects before, and it's have similar case. For LoRaWan, Gateway should be placed in central of nodes network, and placed in higher place than nodes, To make Line of sight as far as possible .
I know how to design both software and hardware, as I have did it since 2012. I will design it's PCB from concept to finished PCB, assembling, until programming part.
let's discuss the details over chat. Let me help you.
Best Regards,
Rijal