Sounds like your in the flipping business .... you should already know the answer to your question if that's the case.
With the 40, it soulds like it might be worth a real professional repaint, since its already been done once. Invest a bit and make it up in the sale. As for the value, I really can't help you there. You really can't call it a "true survivor" with a repaint....its only original once, and the PO already took care of that.
Nice all original cars usually command more money than a car restored to the same average shape. I figure up a step in the value guide and go from there.