Probably didn't need to copy everybody, but oh well -
Here's results of internet search for components needed:
1. Small Solar Panels: http://www.sunshineworks.com
SLP020-12... 20 watt should be sufficient with about a 1A charge rate...about $85 each...each mounting location may have to be customized...OR maybe mount on top of battery box?
2. ABS Waterproof Plastic Enclosure for the electronics: http://www.jameco.com
#2130562 10x7x4"...$22 each
3. Battery Box: http://www.walmart.com
seasense 24...$10 each
Rick your battery choice is just fine.
Anybody feel free to visit the websites and make suggestions/changes...lots of solar panels and boxes out there...this is just my perusal...maybe you can find something better.
I haven't explored the connectors but maybe Jimmys suggestion of banana jacks is appropriate...and I may have enuff cable/fuses/etc to donate for interconnect.
...more later and please give your input...we gotta get rolling...Jimmy, Warren, Marty, Jack (and who else?) we need to meet....build the first one and then clone.