Someone ID'ed the big lathe for me and it's apparently made in Finland, Lahden Rautateollisuus was the brand, apparently good quality, still too big. .
I offered 1500€ for it but no reply yet. I found this lathe for 1550€ today as well, but it's much farther down and perhaps too large:
https://www.tori.fi/uusimaa/Sorvi_41165719.htm?ca=18&w=3
Looks more worn out than the Storebro, but it's also a Swede, a Köpings, another brand of good repute. Perhaps I could offer a lesser amount of money for it. I would not be able to go see it in person though.
Unbolt the lathe from the base and borrow an engine crane. Should split into two fairly manageable pieces after that. That's how I moved a 300kg lathe. Just two people, three would have been nicer.