considering most people make do with a bucket and ice, i think the extra hassle of making copper cooling coils might be a little much. a standing (actually, with the inflow, it's a swirling) pool of water kept at average 5°C is more than enough for almost all solvent distillation, and will do fine for those that still distill sassy.
if you want to collaborate on a writeup, and include both versions, let me know.