These lights are kind of sucky.... in that nobody has made anything newer recently to my knowledge... but worse than that they are COLLECTORS items. Hence they tend to be hard to get and cost a fortune.
I'd just get an Illumina Ti 1xAAA titanium and call it a day. 115 lumens, convenient battery, etc.
4sevens has a CR2 light that is really small. And Klarus has an AAAA sized light. (yeah, not AAA)
Finally, for 70 bucks you might be able to get an MBI Torpedo which is in production. AAA sized, but can use an even SMALLER body with a custom 10250 battery to put out 500 lumens! Hopefully it will be done soon. google it for info.