As a simple machine is all you need I would go for an older used one. Maybe this one?
http://www.blocket.se/stockholm/Syma...8634.htm?ca=11
Keep track of machines close to you on Blocket and Tradera (I usually use
www.annonskartan.se as it will check both in a specific area).
Husqvarna 2000 something is also an old good brand (these are called Viking in North America). I got hold of a Polish machine from early 70-ties a few months ago, a Predom Lucznik for 200 kr (in a cabinet) and I really like it so far!