Yeah Komodo Dragon's are the closest living thing you got for a dragon.
Btw, a naga can be confused with multiple things, just like a basilisk. A basilisk is most commonly referred to as either a lizard or a giant serpent, just like a naga can be referred to as a dragon, it seems, a water-serpent or a half-snake half-woman with multiple arms. Like a Gorgon, I suppose.
And all those weakpoints, Reverie might make more/take more away. depends on how they want their dragons to work. I presume that their going to take the European version.
An example of an Amphipteres (my fav's
) is the Quetzal