The attached link is to what I found to be an interesting article about the Thunderer. The floating gun-battery would make for an unusual project to replicate in 1/1000 scale.
The article not only talks about the Thunderer but it discusses the creation of the British "Lake Champlain fleet."

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A detail from “The British Fleet, led by Carleton and Pringle, on Lake Champlain at Valcour Bay, 11 Oct 1776,” showing the Thunderer with two masts, flying a British Ensign.