Replacement switch for slow cooker

I’m looking for a replacement switch for my slow cooker. It looks like this:

It’s a rotary switch, the shaft has broken as per second image. The closest thing I’ve found online is a JL KCD-3, but they don’t have the same mounting holes (which I could probably work around) and only seem to be available on ebay in the USA, which make shipping very expensive.

Can anyone suggest a suitable repalcement, available in the UK? Or know who may have originally made my switch? I don’t recognise the ‘SF’ logo.

Thanks,

Ian.