Welcome to the forum!
I don't have solar panels but I have looked into it. The first thing I would look at is lighting; if you haven't done so already, I would look into LEDs as they use a lot less power. There is a great thread here:
http://www.forestriverforums.com/for...ults-9233.html
The big thing is to look at how many amps you think you will need to replace each day. Once you have that number in mind, you can look at what you need for solar panels. Reading your post, I hope you were not thinking of one of the small 1.5 or 5 watt panels; as those are really meant to keep a battery that is being stored from draining. Also, when looking at larger panels, keep in mind that you cannot count on getting the advertized wattage all day. For example, a 75 watt panel will give you just over 5 amps of power- provided it is pointed right at the sun, and the sun is high in the sky. Realistically you should count on the advertized wattage 4 hours per day. You will still get some power during non-peak times; but not enough to depend on.
So with that 75 watt panel, you can count on it replacing 20 amps per day. I know my typical consumption is around 30 amps per day; which means the 75 watt panel should extend my 100 amp battery from about 2-3 days up to around a week. Of course if you can conserve power; even better. My two biggest draws are the furnace motor and the TV, so if you can cut back on those it will be a big help.