Small update. I am using the PiHQ camera on a 3d printed adapter for Canon EF lens (50mm f1.8 standard)
This was connected to a RPI Zero and it worked great with Skysolve software.
I updated to a Rpi 4 and of course this is much better as the Zero is slow as melasses compared.
I also got a 32mm 120 guidescope that I can attach the RpiHQ sensor to - also works great and solves sky perfect.
The Skysolve communicates with Skysafari over WIFI.