you will need
3 500watt solar panels about 400 each
4 l-16 deep cycle batt. main system 120 ea
4 golf cart 150 batt back up 60 ea
2 charger systems 40-100 ea.
Would you please share the source of this equipment, especially the solar panels?
this is the recommend system . you could save by using a wind gen . they are around 450 but will give you 400 watts of power providing you are in a windy area.
I have yet to see a wind generator that will survive high wind levels and icing on mountain top environments, but in more "normal" environments this is good option. (but then, such places usually already have reasonable power suppy)
Anyway, 500w draw seems a lot, considering the usually low power consumption of RouterBOARD and such. I have seen consumer grade motherboard with 6 Atheros interfaces and 12V power suply that consime about 30W (2-3A at 12V). One 400w wind generator and large (say, 300-400 Ah) battery bank is adequate for keeping the system powered 24x7. But of course solar panels do have benefits - although it's difficult to mount solar panels properly on towers.