Note with the lockers, time, and tire pressure...
Lockers can be a friend and a worst enemy in the snow... Even though I wasn't there myself, I'll point out the example from the snow run last year up at Evan's where people didn't make it out till 6am.
Lockers in the snow have the tendency to kick you sideways anytime traction is lost, especially on a side-hill situation. Anything off camber, and open-open will be your safest bet. Selectable lockers are greatly preferred in the snow. If I remember the stories correctly, the rig that had the most trouble last year is full time locked in the rear, and with a light truck bed, ended up off the side of the road.
As mentioned, they are awful once you lose traction, but with finesse can offer aided traction. Prime example was the jeep / willy's from the last run - the guy knew what he was doing with those full time lockers. A low HP motor was key in my mind, because he did not spin the tires at all. Any moment they started to slip, clutch went in and he went into reverse to give it another run. All in all, I found myself to have the lockers on only in the really deep fluffy stuff... I don't think they made that significant of a difference, at least for our last run.
With mention to time, I think we should kick these snow runs a few hours earlier. I know it's the weekend, but just like skiing, we should plan to hit the snow by 9 or so. We didn't start wheeling till the ~11:30 mark, and didn't leave much for daylight. We got out just before dark, and that didn't have any serious rescues involved. Had $... hit the fan, we would have had a miserable time. We should caution for errors, and give some buffer time.
Also - PSI. Even myself, I didn't air down sufficiently at first, but I ended up around 5psi in the end, and it made a world of difference. This is needed for the snow wheeling around here. We should start planning to seriously air down to these low PSI numbers. Since no one here that I know of has bead-locks, we should be ready to re-seat a bead if something crazy were to happen. Worst case, that means throwing on a spare tire, but ratchet straps can come in handy for squeezing the tire to help reset a bead. Another aspect to think about is a large base to use for the jack / hi lift in the snow to support the truck. I think bringing a compressor is also a vital piece of equipment on these snow runs.
Although on the cheaper side, I've seen these work quite (relatively) well out in the field. Normally I'm hesitant to recommend a HF
product, but these would serve well as an intro:
Viair and ARB also make great pumps, which I would definitely recommend for flow rate, etc over the HF pump, but at least the HF one is a start.
Please give me some feedback!