It is impossible to build a LoRaWAN network without a central hub-gateway that communicates with a number of client devices.
Please pay your attention the most budgetary version: module of LoRaWAN hub RHF0M301 from RisingHF, based on the SX1301 and providing multichannel processing of incoming packages. Module is an analogue of the well-known IC880A and is controlled by any one-board SPM computer.
The software (linux - driver, package manager of packages, and LoRaWAN server options) is open and available on github. Our engineers will provide technical support in the installation of software required for the deployment of its own network LoRaWAN.