REQ: Prefab self assembling structures

As you advance through the game, building and rebuilding dwellings can become tedious as you move from planet to planet. As a higher tier tech tree, we should be able to craft construction drones, and a drafting table, through which you can:

enter a 'virtual' environment (a green grid background with indestructible walls), that you can build any structure you want within its confines, though you can set where the surface line is so you can have underground structures and expand your creation with new blue prints, making the whole thing modular. You are limited to the materials you carry in your inventory, and once completed, you are given a blueprint. You can then Craft a Construction Node, which includes a Drone Fabricator and a Feed Stock Loader, where you can input the required materials for your project and the drones to build it. The project doesn't initialize until you have the required materials in the Feed Stock Loader, the required materials to build x number of drones (the more drones, the faster it builds), and enough fuel for the Node to operate. It would be a good idea to have some guards to keep mobs from destroying your fragile Drones if your going to be off exploring while the base is under construction.