Hi,
I’m sorry for the late reply.
You can purchase it on Bazaar. Here is the link.
You can choose the model that meets your requirements based on your own needs.
pi 5:Raspberry Pi 5 16GB
WM1302 pi Hat:WM1302 LoRaWAN Gateway Module Pi Hat for Raspberry Pi 4B / 3B+/ 3B / 2B / A+ / B+ / Zero / Zero W version - Seeed Studio
Best Regards!