Thanks Andre and Liquidx!
In the meantime I removed the rust and polished the legs, lockbar, coin door and some other small parts.
Vacuumed and cleaned the inside of the cabinet. Steel wool is my new best friend! Just bought some more today. It's amazing stuff for this kind of work.
Since my cabinet is in pretty rough state, I am planning to repaint it next spring / summer with the stencils available online.
@Liquidx But since you already have them printed, what would you ask for them? Shipped to the Netherlands?
Or maybe it's cheaper to have it printed over here... I don't know.
The worst thing, the playfield is pretty bad. The usual cracks in paint and swirl marks in pinballs of this age. Some areas have no paint anymore, worn through to the bare wood. Thinking towards getting an overlay but maybe just touch up, wax or clearcoat and be happy with my original playfield.
Thanks for replying!