Tom Fletcher designed the Spacedeck/Spacearm with MM cartridges in mind. The Nottingham cartidges, no longer made I guess, were based on Goldring MM. That's what I use, Goldring 1042. There is a lot of a sound in that cartridge if your components and cables are up to it. That said, I heard that many other cartridges, including not too heavy or/and too low compliance cartridges work quite well in the Spacedeck arm. Some really like Lyra Delos and Kiseki Purpleheart, both quite expensive. I myself am going to keep the Goldring until I upgrade the Acoustech phono to a high level tube phono stage. Then I will see and think. Others would suggest trying some great vintage cartridges. Yeah, this could be interesting, maybe.
You don't really need local support with Nottinghams. Larry from Hollywood Sound, the only dealer in the US, would assist you.
By the way, using adapters degrades the sound to unknown degree, it is better to have the cable rewired with RCAs unless of course you are thinking of a phono stage with XLR inputs. There are not many of them, though.