It's a Vivexotic VX36 (90x47x52 cm).I recommend it be built on lino or thin carpet and with someone to help and steady the pieces.The instructions are well planned out and easy to follow and if I could have lined it up properly I think the viv could have been built in around 20 minutes.
Hopefully it'll look much nicer after I make the fake rock face for it. I bought 6 sheet of 120x60x5cm polystyrene but need to pop down to Homebase to buy the grout and adhesive.