I think I worked out the size. According to the climblock website the plastic panels are 40cm by 40cm. It looks like it's 4 blocks wide by and 8 blocks wide. If I'm correct this would make it 1.6m by 3.2m, which would fit with the comment in the video "everything you need in 5 m2".
In reply to valjean: Roberto has just said it should be about €800 plus local VAT, plus delivery, bearing in mind the holds would weigh about 70 kg (they're made in terracotta, great natural feel and grip)