Ha, sorry, just saw you provided a hyperlink. Thanks again!2K Inverter gensets exist for this exact reason - reasonable power output in a package that averages ~ 50 lbs and relatively easy for most folks to handle. As one who has owned and used the Honda EU2000i to power trailers with a roof mount A/C I've many times recommended the even more capable Honda EU2200i which has replaced the EU2000i. Since you're in Colorado and expect to camp at elevation it's a simple matter to optimize the pilot jet size, allowing the genset to operate as efficiently as possible. Look at this as an investment that is likely to last longer than you are rather than a cheap buy that you hope will work year after year.