Here's
a link to the form you'll need.
You'll be much happier with the BattleBorn batteries and if you haven't already purchased them I'd suggest contacting
AltE in Boxboro for great products, support, and pricing. Don't forget to change the Depth of Discharge in your inverter from the 50% lead acid setting it is likely at now to 80%.
I have been enjoying a similar 12 volt based system on my pondside cabin for three years now and though limited in output it has served me well by running a refrigerator, fairly strong stereo, all the lights that I'll ever want, and brew that essential pot of coffee in the morning.
For the longest life you will want to bring your batteries home for the winter and keep them where it is warm and charge them once or twice.
Finally, and assuming the your roof array is pointing to a perfect solar south (194 degrees and a 35' pitch) you might be able to get a little more solar gain by canting some or all of modules to more to a more southeast orientation to pick up your charge a bit earlier in the morning