How modified pre-dreadnoughts might have forced the narrows

How could modified pre-dreadnoughts have forced the Dardanelles minefields?

Improvised bulges, sealed or concrete-filled spaces, and minimal crews could have allowed some old battleships to survive the minefield, provided the navy accepted losing others.

Old battleships could receive improvised anti-torpedo bulges, while nonessential spaces could be filled with concrete or sealed as air pockets. Minimal crews would reduce casualties as the ships drove through the minefield and absorbed hits. Some ships would be lost or grounded, but enough might survive the narrows to threaten Constantinople. Reginald Bacon is identified as having proposed a similar plan, which was rejected as unnecessary.