If you are close to a Napa store check out the 6 volt GC2110. They are 225 AH deep cycle. I have been using these for about 4 years now and have no complaints.
2007 Surveyor SV230 - 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - 6 speed - Tow Package