Land speeder and refueling module
Getting the speeder into space was hard since I tried to use a shuttle type launch. But since it's not possible to vector the thrust through the center of mass constantly, it would start tumbling after some fuel was used up.
Landing it on Duna was a challenge because the parachutes would tear the speeder apart when they deploy fully, so I had to use the small rockets to slow down before that happened.
Getting two crafts to dock while stationary was solved by raising the gear on the fuel station.
I used a 3rd vehicle to pull the fueling station to Duna with fuel left to fill the speeder.
All Stock craft files: link