Reread my post. You have a total of 235 amp hours available at 12v, not 470. Of the 235, you can take them to 50% of that, roughly. You made a wise choice with the golf cart batteries over the 12v "Marine Deep Cycle" batteries. You have increased you capacity more than double that of a single 12v battery, and the golf carts are made to take severe discharges and bounce back.
Oh, while you are at it, keep a close eye on your water levels in the batteries. The golf carts tend to be thirsty.
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