No I don't.
I was looking at a new build, and this
Der Wichtel Triple Seoul P7 Kit for Mag D looks interesting, but there is no power options I like. I'm keeping an eye on what you do.
I'm having a difficult time figuring out how best to use this host that I had Jesus make for me. It will (barely) fit either a 2x2x18650 carrier or a 12AA pack if either is made as short as possible.
If I strike out with the carrier and the pack, then I might just fall back on the route that I took for some old hotwire mods I made by building the carrier into the torch. (I mounted contacts on the bottom of the switch base and made a contact board to go between the batteries and the tail spring.) It makes loading 4-wide AA batteries a pain in the butt that way, but for 2x2x18650, it might not be so bad. It would actually work in my favor by allowing me to switch between shorter unprotected IMR/LiFePO4 cells and longer protected Li-Co cells, if it weren't for that the fact that I'm not bucking 4 cells down to 3 emitters, I'm boosting 4 cells up to 5 emitters, and the Li-Co cells discharge rate limitation doesn't lend them to this application after they're only a short way into their full capacity.
Here's what I mean by the built-in approach (AA):
Tail end
Switch base end