sounds like a fun contraption you have worked up there!
-couple things stand out...
..those lights are killing us.
..that inverter running is robbing us.
..looks like we are in the red before we even sell one stick of firewood.
how it looks from here,
lights- 39 watts for 12 hours = 468 watt hours
idle inverter (however we are not really at idle here)
idle inverter- 0.8 amp draw (per spec sheet) for 24 hours = 230 watt hours. (0.8amps x 12volts x 24hours)
lets stop there for now. and add 468 and 230. so far we need 698 watt hours for a 24 hour cycle.
the perfect output for a kc130 in hartford in march is 4.5 sunhours (per data tables) x 130 watts = 585 watt hours (in reality we won't get even close to that)
the battery side of things sounds kinda ok (the mixing is not so great)..looks like about three days backup. as it is now, with a fully charged battery you might go three days without solar input (no vends)..and with a fully charged battery and perfect solar input (no vends) it might run as long as a week or so. sorry
a few ideas come to mind.
edit: re-thinking this last bit. "it might run as long as a week or so." ..it might actualy chug along for several weeks before it crashes..