I'd be tempted to reconfigure the 4 banks into 2 of 6P4S. Would add stability to the runners.
And still provide redundancy. (And a bunch of spare parts).
Hard to tell from the pic the difficulty, though.
But maybe a better approach would be to just replace the cells with new ones and sell the old ones off as grade B.
Worth a cost appraisal, anyway, vs electrician time + opportunity cost.
Though if things are kind of working now, probably just make this your next upgrade when the time comes.
Good luck!
And still provide redundancy. (And a bunch of spare parts).
Hard to tell from the pic the difficulty, though.
But maybe a better approach would be to just replace the cells with new ones and sell the old ones off as grade B.
Worth a cost appraisal, anyway, vs electrician time + opportunity cost.
Though if things are kind of working now, probably just make this your next upgrade when the time comes.
Good luck!