Using Light Plate AND Masterwork Chain...
I'm thinking of trying that out in my next custom game. My reasoning is that decent swords make an appearance much later than hammers. Usually, when I get to chainmail I see plenty of clubs/hammers but not many swords. At the same time, later on swords actually become pretty good, and Masterwork Chain makes sense.
Come to think of it, Ironeers really need some Super Plate as a racial ability.
Thoughts?