I thought I’d give a shout to a relatively new UK component supplier https://hobbycomponents.com/
They seem like a really great company. Not only do they sell the usual Arduinos and modules, they also write a lot of drivers and Arduino libraries themselves, which is really good for those Chinese modules, eBay specials, etc.
Ok in their forums for all the zip files and discussions.
Plus prices are good (a little bit more than ebay but not much, and delivered in days not weeks or months) and postage is cheap.
No connection or interest - just trying to connect other hobbyists.
Hope it helps,