Oh I built all those things myself, I do have a lather though pivoted coupling rods are pretty easy so long as you remember to use the paper trick to keep solder at bay.The big issue in our scale is finding sliding horn blocks (journals).
I re-built the Yeti chassis using Slater's 0 gauge sprung horn blocks - so far so good, but then you hit the next obstacle, pivoting (hinged) coupling rods, which is why I converted the Yeti to chain drive without coupling rods.