Man, that's heavy! That kit is fantastic when the power goes out but if you're doing the bugout/SHTF/TEOWAWKI thing, you probably want to streamline to one battery type and lighten up. It's very easy to have backups for backups for backups on emergency gear and end up with too much stuff to effectively haul around. I mean...you're going to have a fairly sizable backpack or duffel bag with all your other support and survival gear so having another hard case with lighting solutions to carry is going to be a big hindrance unless you're planning on staying stationary.
On my bugout bag, I kept it simple. It started out over 50lbs of gear because I wanted comfortable quantities of backup gear...utility knife, fighting knife, pocket knife, backup pocket knife, two leathermans, shovel, x change of clothes, y quantity of medical supplies, two water purification systems, etc. I've managed to shave my pack weight to 25-30lbs by adopting the "ultralight" mentality used by ultralight hikers, and about 5lbs of that pack weight is a solid week of rations/food. I'm still tinkering to tweak pack weight.
Since I'm fairly new at a lot of this flashlight stuff, I don't have anything top shelf, but I currently pack a Fenix LD20+ which isn't the best/greatest at anything, but its got low, medium, high, SOS, and turbo plus strobe, advertised for 71 hours at the lowest 9 lumen setting and just 2xAA. I have a Maratac single AA as a backup which I'll eventually replace with something that has a longer runtime. I run lithium AA's for weight savings (don't poo poo an ounce or two. It all adds up) and they'll work for sure when I need them/ I carry Eneloops and a Powerfilm 2xAA+USB solar charger.
The powerfilm solar charger folds up to the size of a wallet and its very light. You can lash it on your bag during the day and charge stuff while you're on the move. The USB charger port is good for many electronics like cell phones, GPS (assuming those still work), or morale items like ipods. You can run USB stuff off solar in the day or leave the AAs in the charger and run USB off batteries at night. A small scanner, emergency radio, and an ACR MS-2000 strobe I pack also run off 2xAA's so this will keep me going for a while. Like you mentioned, AA's of all sorts will be the easiest thing to buy/bargain/beg for in an emergency but a recharging solution is self-contained. Since some of your lights use 3xAA, Powerfilm also makes a 4xAA charger without the USB.
Here are the products in question:
http://www.powerfilmsolar.com/military-products/military-usb-aa.php
http://www.powerfilmsolar.com/military-products/military-aa-solar-charger.php