used fully automatic machine for 300 Euro wanted

Moin,for our small office we need a VA (5 coffee drinkers - approx. 10 cups/day). New devices came to my mind with the budget only Delonghi ECAM 22.110 or a Melitta Cafeo Solo.
So I'll take a look at some good used ones. At home I have had a Jura F50 (
20,000 earnings) for
10 years
. I know them very well and do everything myself. I'd consider myself incredibly robust.
That's what I'm looking for in something bigger for the office. Indestructible, good to maintain yourself and of course good coffee!
Milk foam would be nice, but secondary (the colleagues would not clean anyway...)On the note are written so far: Nivona 831 or 768The
831 you get in large numbers with defective display. Partly for 50 Euro. Complete repair at Nivona is
a maximum of 184 euros.

The 768 is newer of the year of construction and still quite topical, has already aroma

balance and was seen 2 years old with 2500 covers for 320 Euros. Siemens EQ.6 S300Used with few covers around 300 to 350 EuroMelitta CIGUsed with few covers around 300
EuroJuraI don't have the model overview
here.
Could Z5 or J5
be something?
Opinions and ideas welcome. Especially with Jura, I still don't have a clear view of the model series.

Nivona Display is not available until the end of the year. (Prices on the net are unrealistic
)Siemens is the cheapest technology from Gorenje from
Slovenia.
Get a Saeco Lirika Machiato RRP 479.

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KVA:WMF 800 ST: Lelit Bianca PL 162