Arnold, thats almost true, most I know of have a BEW around 500 or so kg, so they would be legal..... so long as you dont hop in and want to fly it.
How heavy is the RAA one and how many ribs and rivets were left out?
By my guess it needs to weigh less than 420kg....... and the bloke I know who has built many of them reckons NO WAY!