Nrgy,
First of all you will be operating in areas that can be quite unforgiving to the unprepared. I have operated SE aircraft in those areas, but only day VFR/VMC. A turbine SE may be a viable option. However, you can find good older King Air E-90's and B100's for the same money or less. Plus they can operate off unimproved landing strips. So they can be used to fly between your properties. As for a helicopter, personally in your situation I would look at a BH206B or an Enstrom 28C or 280C or better. Both have high inertia rotors and have good safety records. But it would also depend on what altitudes you would be operating at.