I have a 97 amp hour battery and 120 watt solar panels,and a good inverter-make sure you get a very good sine wave inverter,it does not have to be a huge one for a laptop-around $150-$200 will get a good on for your needs-and power up camera batteries as well.
The battery I got was second hand,the 120 watt panels from ebay-around $225-but make sure you go back on to ebay and buy a regulator-I got mine for $110-its a 'Mason' brand I think-its important not to rely on the one that comes with panels-they are crap-the $110-has a digital read out-tells you so much-very very handy.
I've used the above kit in the field,to help make a documentary ove rlast 6 months.
I'll post some images and links if needed,and I get time
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