Well, For one thing we don't need that much lift because right now we aren't going to the Moon. For a Geosynchronous Transfer Orbit (GTO) there are several launch vehicles that are currently available. For example The Delta IV built by Boeing. If you check the specs down the right side of the artcle you will find what it can take to GTO and to LEO.

There is no real need to re-engineer the Saturn V for current production. That would be a large undertaking. While we could probably find the prints to make one the actual production would require a great deal of engineering. The decisions made in the 1960s may not be the best in the 21st Century. So we can just go ahead and use what we have, which are probably better designs than the Saturn V.

Bill Gill

C is not the speed of light in a vacuum.
C is the universal speed limit.