Do you have an inventory for the box you want to organize? My first suggestion would be to inventory the box and then sit down and think about if you have more items that *need* to be in the box. I would also suggest looking at if you are bringing in any consumable that requires an MSDS on site and incorporating a three ring binder with the MSDS in it into your layout plan for the gang box. This will cut down on a ton of headache when a client asks for the MSDS. Have a small area of the box dedicated to the consumables that require an MSDS, so that it is easier to track them.
Once you have an inventory going I would suggest emptying the box completely. Straighten your bent shelving and brace it up as required. The issue with those type of stand up gang boxes is that the shelves are that rugged, so heavy rigging or tools causes them to bend.
If this is going to be your gang box I would suggest adding more rigging points to the outside of the box not only so that it can be picked if required from these points, but also for transport. These work really well for tie downs
http://www.uscargocontrol.com/Ratch...Ring-Tie-downs/Rotating-Pan-Fitting-6-000-Lbs . Knaack actually sells a tie down / rigging point kit for a lot of their gang boxes which maybe worth checking into. (Tall gang boxes have a tendency to get top heavy and take a ride off the fork truck, haha.) Once your box is all together with everything in it I would suggest weighing it and putting the weight on the outside of the box. This makes it a lot easier for the operator and the guy helping with the rigging to grab the right rigging and equipment to get your box where you need it.
You haven't really quantified what type of work you are doing out of the box. Are you doing a lot of millwright work, pipefitting, or ironworking? What trade predominately works out of the box? Even non-union wise a guy may be flexible enough to work in several trades, but he usually identifies with one trade most of the time. You should use this to tailor how the box is laid out. There is no reason to setup a welder's box like a millwright would setup theirs.
I would ditch the bags and look at putting in drawers. Bags and buckets are great to carry tools into to the actually job, but they **** for organization. Everything just gets thrown on top of everything else inside the bag or bucket. Keep the number of bags or buckets required to bring the items to your direct worksite and ditch the rest. My gang box has the bottom half of a 6 drawer (off the top of my head) tool box installed in it along with stainless steel bins and slides. IMHO, it is all about organization and maximizing the amount of space you have.
I am OCD about my gang box and inventory what goes in / what goes out just like it was a CTK on the flightline! It is very frustrating to me when a crew that is working for me spends half of the time rummaging through their gang boxes and the other half always "running for a tool". If you are organized and everything has its place your are much more efficient.
As far as the crash carts or pit carts, imho, they aren't for construction sites. A gang box needs to be rugged enough to be transported many times by fork truck or crane, withstand night shift trying to pry the doors open, and should also imply I'm a field guy here ready to work not a shop guy out for the day
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