The enclosure pictured in this thread would be more suitable for a water dragon.
http://ball-pythons.net/forums/showt...agon+Questions
Oh and my local reptile store has a 1.1 of adult sailfin lizards, and let me tell you, they are not little. Imagine almost green iguana size. Hes got them in a prolly 5 foot long by 5 foot high by 2 or 3 foot deep enclosure, and I think thats even far too small.