Observation of manual focus 85mm Nikkors...
85/2.0 AI: Didn't like odd barrel design.
85/2.0 AIS: Small, light, good performance but nothing special.
85/1.8 K AI(ed) medium, excellent sharpness, printed b&w for friend. Perhaps more flare in harsh conditions. Tried to buy from friend 10 years ago, no luck.
85/1.4 AIS: Large (presence), excellent sharpness, better sharpness than f/2.0 AIS from f/2.0 to f/5.6. Maybe better than 105/2.5 AIS. Good bokeh.
Dave Hartman