Glasses list the ed 30
A while back there were some car supermarkets selling new ed 30 3 dr manual for £17995. They were imports though. I suppose they have all blended in with the uk ones now though so perhaps check the supplying dealer in the service book. You would expect it to be that same amount cheaper compared to the uk one when secondhand.
Also because they are normally numbered its sometimes possible to track down previous owners and history of the vehicle. There is the ed 30 register which is worth checking. You can use the forums and things like this to help check history.
Its nice if the seller is telling the truth but some of the ads say never modded, crashed or damaged one carefull owner. A quick search can reveal all sorts.
I will be looking for one for my next car, really like the ed 30.
Good luck, hope you find a good one