Hi @michaelgordonharper,
The models mentioned were released in 2011(SS-AR1) and 2013(SS NA2ES & SS NA5ES), so you will not be able to get them directly from Sony, but you can check the third-party retailers online as they might be selling them as new or second-hand.
The SS-AR2 is for the US region. Therefore, I won't recommend using them in the UK.
You can find the nearest Sony retailers from here: https://www.sony.co.uk/electronics/dealerlocator.
