From a strategic point of view I see the your point. From the practical point of view I think it will be difficult enough just getting supplies together enough in one (or more) places to handle a platoon.

I would think a better method would be (assuming you had all the materials needed) to equally split up the supplies into three (four?) amounts and have them dispersed among non-fighting elements that have little "exposure" to enemy forces. This could be folks like me that are not prime fighter material but can hunker down and drive when needed.

Just wondering, how much space would materials for a platoon's supplies for 1 month of eating and munitions re-supply take?, a two car garage? Larger?

Also, how do you think enclosed trailers would be for storage? Especially if they could be hidden during storage. That way, they could be zipped out when necessary. The only danger here is that they could be questioned by enemy forces as to their purpose for being on the road, etc.