Okay Holmes,
Let's build your moon base to make Mars Mission components. When I say make, I mean manufacture. So what do you need to "lug" from earth to set up shop.
* Surveying vehicles to find your raw materials in sufficient quantities to make metal alloys.
* Mining equipment to extract the raw ore and transport it to a smelter.
* Smelting furnaces to reduce the ore into metal ingots.
* Machine tools and stamping tools to shape the ingots into finished metal components.
* If you are intent on using plastics, I seriously doubt you'll find petroleum in sufficient quantities to make the necessary distillates that plastic manufacture requires. So send along a few oil tankers with your next Earth - Moon shuttle run.
* Power, lots of power. Solar? Nuclear? In any event, you need all sorts of electrical euqipment. Generators, motors, batteries, air conditioning and heaters.
* A substantial skilled labor force. Throw in a rec hall, movie theater and swimming pool. Also a Hilton Hotel for visiting management and a Motel 6 for relatives of hourly workers. Oh, and don't forget your Avis Moon Buggy rental office and scoop out a playground and park with hiking trails.
ALL SET? Now you can make you Mars Mission components from "moon materials". Cost effective? Uuuhhhhhh. NO.
(:raig