That is going to be a nice battery bank. If you were to wire them all up in series you would have 413Ah at 96V, If you were to wire up two strings of 24, then you would have 826Ah at 48V, If you were to wire them up as you suggested as 4 strings of 24V, then you would have 1652Ah at 24V, or you could wire up 8 strings of 12 volt and have 3304Ah at 12V. I would recommend a higher voltage unless you enjoy buying and running really thick cables. On a bank this size be very careful with your connections, and fusing. You have a huge amount of potential energy there. If the conditions of the cells are all similar, then you could parallel your strings. I would fuse each series string individually in case of a problem with a bad cell down the road, and also have a fuse near the batteries where the strings are connected in parallel to limit overall power into and out of the batteries. Others here might have more ideas or insight as to fault protection for a bank of your size. Keep in mind that batteries have internal losses, and the larger your battery bank, the larger those losses. Forklift batteries are made to take a bit more abuse over their lifetime, but at a cost of a generally higher self discharge rate. Like all batteries, they will last longer if you don't abuse them by repeatedly deep discharging them or constantly overcharging them. Wow, I would love to have an 826Ah bank at 48V of Forklift batteries. At 20% depth of discharge that is 7.8Kwh of energy. Even if there capacity is reduced somewhat, providing I could keep them charged during the day, that's still enough power to supply my residence AS IT IS NOW on the grid. I'm not that bad, but with additional conservation measures, I could do a lot with a bank like that. Rich