Moding AA Minimag or Brinkman or Similar?

I still haven't found a good body for a 1W Cyan "alien beam" light I want to make. I definatly want it smaller than a 2D mag so I can pocket it and whip it out to mess with people anywhere I go. So I want it "EDC" sized. (whatever that means)

1) First, What brand light?
I need to fit a LS/MicroPuck/heatsink/NX05 into a small bodied flashlight. Would a AA minimag work? would a brinkmann be easier? If I can't get a brinkmann would a Craftsman AA work? (sideswitch) Anyone mod one of those before? What about something else?

2) How many hours of full bright can I expect from 2AA's and a micropuck?
3) Does the Micropuck keep power constant or does it go down with voltage?

4) Also, if a red LS in a 2D mag Direct Drive will last at least approx 12 hours full bright, what can I expect from a AA version?

I to your knowledge! please help me find a readily avalible light to mod!

As to 1W Cyan: Why use a micropuck instead of a BadBoy module?

The MadMax with a Cyan LS generates about two and a half hours of constant, bright light. Here is the runtime plot:
http://www.candlepowerforums.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=16;t=000055

Because the micro puck is a lot cheaper. I was originaly going to try and make my own with the cheapest parts I could find but I figure I can sell a flashlight or something & buy the micropuck /ubbthreads/images/graemlins/smile.gif

Well, what kind of flashlight should I mod? Which is easiest? Someone has to know!