$750,000/kw SPS today? (was One-Way Trip to Mars Offered by Dutch Company)

--- In spacesettlers@yahoogroups.com, Al Globus wrote:
> On Apr 10, 2013, at 5:19 PM, hitssquad wrote:
> > Taking the $100 billion 100 kw ISS
> That $100 billion purchased a few items besides the solar arrays :-)

My understanding is that most of what the ISS does is produce electrical power, and that most of what its human inhabitants do is maintain and repair it. What could you leave off of the ISS that is worth $99.25 billion and whose absence would still leave the ISS functional 24/7/365 for decades as an SPS?