I would have a look in the uk before you go for a light weight one , they are very easy to erect. When I was in Santa Eulalia I didn`t see many shops selling them and I`m sure they will be more expensive there. Have a look in the Argos book they have them at good prices. The one we use to use came form mothercare and was only about £30.

I had a look in the Argos book last night they have one for £15 that should do the trick.