Been looking at the exact same enlarger.
Looks like any kind of neg carrier is missing.
What’s more I fear the head has been stored in the position is in now, for a long time.
That means that the long curved steel spring blade inside the column, that creates tension against the roller, most likely is permanently deformed and/or is metal fatigued, and is therefore brittle.
I’d be very wary about paying more than a few hundred kroner for something you are not sure is working well in the first place, and that could potentially develop a “catastrophic” failure any time.
The dichroic filters might be tarnished or dusty too. How easy are they to get at and clean?