How much power will you be using while camp hosting?
Just lights, laptops, phone and maybe a little gas furnace from time to time? A LED flat screen TV doesn't take much power, but a satellite TV receiver takes quite a bit of power.
If so you won't be using a lot of power and a couple hundred watts of solar should work just fine.
For a better idea of how much power you will use and what it take to replace the power into the batteries, take a look at these links:
The 12volt Side of Life (Part 1)
The 12volt Side of Life Part 2
BTW replacing the incandescent and Florissant bulbs with LED will save you lots of battery power.