Sam Coupe is such a rare computer, it would be great to have Disk loading on the ZX-Uno core. Maybe there is some useful information from the MIST Core (I think they used yours as a base, but added DISK loading).
https://github.com/sorgelig/SAMCoupe_MIST
Thanks for all your hard work

P.S. We nearly bought a Sam Coupe after our ZX Spectrum+ broke, but in the computer shop we saw an AMIGA!!!! It would be good to go back and try Sam Coupe software/run demos.