Replacing the British Trafalgar fleet with HMS Nelson copies

What if all British ships became copies of HMS Nelson of 1814 just before Trafalgar?

The expected result is an overwhelming defeat of the French and Spanish fleet through the much greater firepower.

The later question replaces every British ship at Trafalgar with a copy of the 1814 HMS Nelson. The imagined result is overwhelming destruction of the French and Spanish fleet. Africa is singled out as an example of the transformation into a 120-gun first rate. The response remains a broad firepower judgment, without a worked-out battle sequence.