You'll find here few links to see the models in 3D.

The Propellant module : Propell HERE

The Communications module : Hawkeye HERE

The Solar Energy module : Electro HERE

The Accomodation module : Odysseus HERE

The Hardware storage module : Achilles HERE

The MRV module v2 (v3 in progress) : Condor HERE

The Rover Crew module : Chenille HERE

The other rovers : Rovers HERE

[:)]