Xbox elite controller 2 or alternative?

Hi all,

I'm UK based and was looking into getting the Xbox elite series 2 controller. However, I can't find these for sale anywhere! Does anybody know places selling them? Or can vouch for one of the ebay stores selling refurbs?

Or if anybody knows of a good alternative? I'm mainly looking for something simple plug and play like the xbox controller - with the extra button functionality like the elite controllers. Maybe the Razer or PowerA Fusion?

Thanks