There are one or two at my clinic I think (though as a relative newbie pumper myself I’m yet to actually bump into any of them).
If you can bear the thought of Facebook, there’s a Pump Users group on there that might have a few, and then there’s always INPUT and ‘Insulin Pumpers UK’ to scour for likely candidates.
Hope your transition goes well. Some take to it like a duck to water, others need a little more ‘settling in’. Took me at least 6 months to get enough fine-tuning hours in to start getting the results I wanted when I made the switch 