Here is a Chameleon with all kinds of different bodies and heads for it. The one on the very left is the way a Chameleon starts out as, and you can see how big the Chamelehead is towards the right.
The Aleph has a 38mm reflector and therefore probably the least amount of throw, followed by either the HD45 or Chameleon with Chamelehead. I don't own a HD45 so I can't say whether it has better throw or not. If you went with an HD45, there are two versions. One with a Luxeon V LED and one with a Luxeon III LED. The Lux III would be the better thrower of those two, but I don't know by how much.
The Chameleon uses one 3.6 volt RCR123A battery. The HD45 I think comes standard using two 3.0 volt CR123A battery's.
It might be a toss up between those two lights when it comes to throw. The Chameleon seems to have a 47mm head versus 45mm for the HD45.
I sent you a PM too Miracle