Hi Gerard,
I would suggest the Beogram 4002. It is as beautiful to listen to as it is to look at. From my understanding, there are plenty of them out there in the wild and there is a lot of resources in regards to maintenance and repairs. I was lucky and bought my 4002 in excellent condition for about 300EUR, but here in Australia, I have seen them sell for upwards of 1200EUR. Condition and price seems to vary a lot from seller to seller.
I only have a 4002 and a 4000 so I can’t speak for any other of the series in terms of series to avoid. But the 400X series is by far the most beautiful record player ever made.
Best of luck!
Christian