The main suggestion came from a ham radio fellow: why not to use the following module from Bangood for our LoRa APRS 433.750 MHz project? It is quite cheap (35 Euros) and compact and it is said to be very reliable as well.
|LILYGO® TTGO Meshtastic T-Beam V1.1 ESP32 433 Mhz|
WiFi Bluetooth ESP32 GPS NEO-6M SMA
18650 Battery with OLED - 433 MHz