As an afterthought to yesterday’s post I got out the kit pieces and tried various deck layout configurations for a second steam tug.
I think that I will try this one, with a few nautical accessories.

But things keep getting better! At the top of the picture are two river boat hulls, which just happen to be the correct dimensions for a German catamaran ferry or floating gun platform in 1:300 scale.
It looks like my 19th century Americans will need to wait for a boat trip up the Mississippi.