[bewaretheirs]

With capacity of 10 tons to LEO, 4 tons to GTO, it's somewhere between the Titan II (used for Gemini) and Titan III.

Would have to be a pretty lean moon mission.

[InclinedPlane]

Only for a direct ascent architecture. There are lots of Earth orbit assembly missions that would be possible and not terribly expensive to pull off (at least for a lunar flyby style mission).

[danielvf]

Wouldn't be a manned mission, but that's plenty enough for a small rover mission.