Heltec CUBECELL is a very interesting LORA Solution.
Small, cheap, very low current consumption.
It is Arduion compatibel.
Is there a chance to run under B4R ?
If it is Arduino compatible then you can use it in B4R.
If you are going to use the display, a library that supports the display type must be available in B4R. (I think there are 1)
If you are going to use Lora, a library that supports the chip must be available in B4R. (I know there are 1)
If you are going to use LoraWan, a library that supports the chip must be available in B4R. (I know there are not 1)