Apologies. You might consider building a high quality American made light with modular components. You can buy these parts separately.
You mentioned AA fuel. A AA cell is approximately 14mm in diameter and 50 mm long, or 14500 size. The MD1.5 body tube is the correct length, but is 18mm wide, made to accept 18mm cells like the 18500. If you go this route, but want to use a AA/14500, you need to shim the extra width using a spacer like a dollar bill rolled up around the battery. Here's the link for the battery tube.
https://www.candlepowerforums.com/v...6-MD-1-(18350)-amp-MD-1-5-(18500)-By-FiveMega
A spacer option:
http://www.candlepowerforums.com/vb...NY-SIZE-charger-or-body&p=4639656#post4639656
If you don't shim, you will experience battery rattle. Not cool.
As I mentioned, this is a modular light. Now you need a head with light engine. Assuming you want to stay with AA primaries, you should focus on a 3 volt engine like the M31, made to fit in a MDX head.
https://malkoffdevices.com/collections/surefire/products/m31w-warm-tint-beam-to-fit-vme-head
This engine would give you around 60 lumens, single mode, at 3000k.
The cool variant is slightly more powerful:
https://malkoffdevices.com/collections/surefire/products/m31-to-fit-vme-head
If you're willing to consider rechargeable cells you could use a 14500 or 18500 3.7v li ion battery and the M61 series drop ins. Much more powerful - for extra throw. Very cool.
These P60 type drop ins work in the MDX head, which screws onto the MD1.5 body above:
https://malkoffdevices.com/products/copy-of-mdx-16-5-head-black-ha-iii?_pos=1&_sid=30b7d6476&_ss=r
This is a 16.5mm diameter bezel, Gene Malkoff also makes one with a larger 22.3mm lens, it is preferred for better beam pattern.
You mentioned two-mode via head rotation. Also an option here using the Malkoff hi low switch.
https://malkoffdevices.com/collecti...-items/products/high-low-bezel-switch-for-md2
The hi low switch screws into the head around the light engine and is activated by turning the head slightly. Gives you a low mode with the M31 drop in via the resistors.
Finally the tail cap and mechanical forward clicky:
https://malkoffdevices.com/products/tailcap-switch-for-md2-md3-or-md4
Malkoff bodies share the Surefire c series tail threading spec, so a SF z41 would work also.
In the end you would have a light that looks like this:
https://www.candlepowerforums.com/v...-your-lights&p=5212656&viewfull=1#post5212656
Its the second light from left.
Heres another better shot, minus the tail cap (3rd image down)
https://www.candlepowerforums.com/v...refire-G2-Malkoff-and-HDS-parts-Rare-Dropins!
This light will meet all your specs. Obviously a bit more effort to source components and assemble, though I should point out assembly is screwingparts together, not soldering wires. Very easy! I taught my wife what to do in 5 mins. And prob more expensive. But it is American made, user maintainable/upgrade able, multi fuel, etc. And exactly what you want.
PM if you have more questions. I built this exact light and it worked well. Eventually sold it because my preferences changed. For me, this light was attractive because it offered the ability to easily switch light engines.
best of luck.