What I'm thinking is a simple terminal that provides a list of all items wanted and sets a price. Price can be in caps/prewar money/Nuka Cola/anything really. All you would have to do is "buy" the item and wait a set time for it to be delivered to a Dropbox. I don't know how many of you are like me, but it always confused me how *insert random scifi armor* fit into Fallout. With this I can rationalize as being a special order item through an automated system.
Funtionally it'd work like this for a player:
Player activates terminal that opens a catalog containing order forms for each item.
Player takes form for item wanted.
Player deposit order form and payment into drop box.
After a time later the item would be delivered to a location.
Thoughts? Think something like this is worth the effort?