After some scratching of the chin, I removed the batwing antenna, the solar panel, and both ceiling fans. It took a lot of scraping of old crusted sealant off of the screw heads and a little crowbar action.
I ordered two new Fantastic fans on Amazon at $221 a piece to replace the old ones. I got some butyl seal tape and Dicor lap sealant too.
I ordered two new Interstate GPL-31XT batteries for $368 apiece from Powerstride.com. They have 125 amp hours of capacity. This would give me a total of 250 amp hours of reserve capacity and approximately 125 amp hours of actual capacity.