Incendio V3+ Upgrade XM-L? $63 or so. Nice low, then two middle gears,then over 6 times your 80 lumen mark, in Overdrive! Or the new Lumapower EDC LM series? if you simply want a V-6.
I am also interested in a 123 clickie.....I never even considered Lumapower as a viable option for ANYTHING before!
What about the zebralights sc31 I think is fairly small. sc80 is pretty small and takes both the CR123 as well as the AA