Hello,
The testing would be a challenge. I am already happy that I managed to install openhab, my skills regard to openhab / rpi is not great. I just started with openhap and the Rpi.
I think the easiest way for both of us to is go for a NodeMCU so that I work via a TCP connection.
However if you create a support for USB connection I can give it a try, but if I dont get it,it’s a waste of your time if you made it especially for me. I wouldn’t want that.