They won't come with an old SA AW 3 speed hub but a newer model.Lots of UK sellers
The Sun Ringle CR-18 is one of the few alloy rims in ISO 590 and drilled for 32/36/40 for SA AW hubs, but getting hard to find.
https://www.cycleking.co.uk/wheel/wh...3-speed__13117
https://www.somafab.com/archives/pro...00c-rear-wheel