I am in the UK and I buy toroidal power transformers including HT transformers 230V:230V from Airlink. Good prices. No need to pay extra for Toroidy, though they have good products.If I were in the UK, I would order Toroidy for the power transformers (assuming shipping from Poland is not expensive). If you want a matching set of top shelf iron, go for it. But for power transformers I don't see a reason to spend a lot of money. Less need to worry about radiated fields with toroids. The same goes for chokes. I am in the US and have bought quite a few from Antek.
https://airlinktransformers.com/
https://airlinktransformers.com/pro...toroidal-transformer-standard-range-cm0030172