Buying a suka

Hi,
Me and my wife recently moved into a top floor apartment. One of the reasons we applied for that apartment is that the balcony has no roof, which should make it ideal for a suka. I realize it’s still pretty far away from sukes, but I’d like to get it done. From where should I buy my suka and what should I think of when buying one? I live in Sweden, so it’s really preferable if it’s from a website inside the EU (the tax cooperation with Great Britain will roll on until 2020-12-31 from what I understand so that works too).

Sites, models, send me what you’ve got. Thanks!