The Mun Mining and Refueling Drone is an all in one platform for mining, converting, refueling, and base building. With KIS/KAS you can use the containers on the craft to send base parts to be assembled on the ground, station parts to orbiting structures, refuel stranded ships, and even reconfigure the craft on the fly.
The craft file includes the lifting stages, drone, and a small claw sattellite.