http://www.geocities.com/epgrondine

Note that the infrastructure required to build CAPS is the same that enables a moon base.

The astronauts travel in pressurized research vehicles, thus reducing required EVA supplies and providing radiation shielding.

The pre-packaged supply modules are buried under regolith when empty, thus providing better radiation shelters.

Solar storms are observed about 3 days before the large particle radiation hits,
and the impacts of comet debris are known years in advance.

No problem, unlike manned Mars flight, where there are no radiation shelters on the long legs of the trip. Also unlike manned Mars flight, in that CAPS has an immediate benefit.