Having worked up a set of 3D models for stern wheel ACW transports I then decided to do the same for side wheelers. This part of the plan was initiated by a chat I had online with a friend in the US who is working on a Mississippi paddle steamer racing game, hence the first ships I made were inspired by steamers such as the Robert E Lee and Natchez, although greatly simplified - all being well they will be making an appearance in his game in due course. The last one I created was a side wheel tinclad gunboat, using the superstructure and casemate of the stern wheeler as a basis.
So now, at very little expense other than a number of hours working 3D packages, printing time and a bottle of resin I have - to be honest - more ACW transports than I know what to do with :) Not that it will stop me tinkering with the models and creating more variants :D
If anyone wants models for themselves I've put them up in a couple of sets on Wargame Vault.