This ad is in yesterday's MCN classifieds:
"Commando Rotary Interpol 2
Classic
1987, 11,400 miles, Engine rebuilt 2019, new tips and seals Molly Coated side plates Built by stark Wright of leeds Good £8000. Tel 01356550187. Glos"
And there is a photo of a naked Norton rotary -- can't make out much detail.
Not sure if you can find it online too.