Kim had one of life's little hickups (but it wasn't so little), but he is back now, better than before, so give him a call.
Back in the 80's I built a cross channel paddler looked like that, and had feathering paddle wheels as part of the kit.
Graupner did, paddle wheels for the Glasgow.
Float-a-Boat in Melbourne, Australia, may have some which where laser-cut locally, and think Kim has the same range.
Talisman (Paddleducks) did as stated above, photo etched ones but a few years ago now, and haven't seen him on the PD forum for quite a while.
ASk on the PD forum
cheers