If I read the T5.10 ship construction tables correctly, a streamlined 90 dTon pod costs 5.6 Million Credits, The pod, if carried in space, must be both airtight and well insulated. It will also need to have sufficient cargo hatches to be able to load and unload cargo, preferably at both ends, so as to avoid having to totally unload the pod to get at the item of cargo to be unloaded first. Before you say this is not possible, I have seen it happen with cargo trucks, where the first pallet to be unloaded is the first pallet put on the truck, meaning that all of the other pallets have to be moved to get at that one
Now, this cargo pod is not weightless, but is the equivalent of a 450 gross register ton submarine hull. Say it weighs about 200 or so metric tons. Does it also have some form of landing gear or feet so as to prevent it from sinking into the ground, or is it only dropped off on a hard loading-bearing surface like a runway? How much cargo are you planning to put into this? You return on investment per fully loaded pod is 90,000 Credits per loaded trip. The numbers do not seem to add up real well.