Who still repairs Naim Nait 1 integrateds?

I recently purchased a Naim Nait 1 which needs servicing, possibly repair (I am not sure about some of the sounds produced by this small box), yet when I called Naim USA I found out they no longer service nor repair these units (Nait 1) owing to age, lack of available parts, etc...

Does anybody know of a good tech who can still work on these?

Thank you for your advice.