I think you miscounted, I see three Saturn-V boosters in that proposal. Three boosters is too many and your plan will FAIL!

Secondly, I gotta say why go to Mars and do research when you can go to the moon and build things? A fission powered lunar colony would have all the waste heat and energy it needs to turn lunar regolith into valuable materials such as calcium, aluminum, titanium, silicon and oxygen.

At first, unmanned "probes" could be sent. These probes would be like little automated factories. Some would be designed to gather regolith and bring it to refining probes that would turn it into useful materials.

Along with that, a landing area could be cleared off and leveled off. Around the area would be storage area for the refined materials. That way when manned missions follow, they have a place to land and replenish most of their fuel. Unfortunately, unless a source of lunar water ice is nearby, there would be no hydrogen. Luckily hydrogen is very light, especially compared to oxygen. The Space Shuttle's External tank carries over six times as much oxygen as hydrogen in terms of mass.

Once humans arrive, they can set up more complicated factories that could produce all sorts of useful materials for space exploration from solar panels to fuel tanks to spacecraft hulls.

This would help cheapen the cost of space exploration and possibly even start to turn a profit if other markets are found for lunar products.

The key to space exploration, at least with our government, is to make it cheaper and safer. Martian colony equipment could also be tested on the moon. If it can survive there, Mars will be no problem, and the moon is a safe 3 days away.

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