@lewm I have been watching the market over a period of time wondering if one had been exported to the UK. During this time I have seen a few histories for the Essential 3160 being sold, where it has been with a price of US and Canadian Dollars, where it has been $3K and less.
Keep an eye on the Market as a upgrader to the 3180 might just dump the Phon' to get the deposit for the new item.
What caught me out is that certain US Brands in Phonostages and Amp's that are imports to the UK are discovered to be heavily discounted when ending up as sale items in the UK used market, using the US used pricing for the 3160, I suspected the same Phon' discovered in the UK as a used sale would not stretch a budget much more than £1200. Such a price to have access to such a Phon' would suit me just fine. I can then put a face to the name, and learn how much spoken about is actually backed up by the device performance. I would be left with an interesting option, where I could pass the device on to a EE Friend who specialises in Phonostage designs, to see what could be done to modernise the Phon' and maybe eek from it an end sound more attractive to my wants. I could also ask the same individual to investigate a Valve Circuit to be inserted to see what can be achieved. I could also cut losses and happily sell on as a quick sale, most likely incurring a loss, if all was not with an attraction to my tastes, and use the remuneration of monies to get back on track with other very attractive SS Phon's known to me and proven attractive through mt already experiencing them in use.
Additionally, if a £1.2Kish purchase was enough to steer me away from considering my other options on attractive in use SS Phon's, then I would be better off financially by sticking with the Essential 3160 at an approx' £1.2K option, even though as a design it will be obsolete and superseded by the other designs available today.
I have direct experiences of hearing Modwright and VAC equipment that are both Amp's and Phon's that were bought in the UK as a used item with a cost that was less than 50% of the used item Value it was seen to be selling for in the US.