Thank you both for your replies.
Sidney I had already saved your site as a key resource. And Cpt Blood excellent attention to detail. It's a shame that the GWM site isn't showing it's table pics?
In NZ it's near impossible to get your hands on pink and blue foam, which would be so much better to work with than polystyrene.
But hopefully in the next few mnths I will have a functioning table as well.
Nick