sry, I haven't updated the forum in a while. I did get the receiver outputting ni-sbus (ni meaning non-inverted). to make my life easier I bought a serial to USB reader (link at the bottom) which worked perfectly. as my transmitter is a high-end one it has the option to transmit non-inverted but most will output inverted and you will need a circuit to do the job (link at the bottom). i used the serial reader to validate and read the data, RealTerm being my serial reader of choice (video link at the bottom). from there it was easy to use any Arduino/ raspberry pi sbus decoder online to separate my 16 channels directly from my rx output on my receiver.
sbus inverter circuit: (SBUS Protocol Decoder / Pi Pico / Mecrisp Forth - YouTube)
RealTerm data reading: (SBUS Protocol Decoder / Pi Pico / Mecrisp Forth - YouTube)