Seriously. What is wrong with the afd version that requires a change? Pick up a new one from HK or BnS would be a better investment IMO.
I had the afd f1.4 and I hated the bokeh fringing at f1.4 and f2. Really distracting to me when it appears. But that problem is common to almost all f1.4 lens I have seen. Wonder if nikon has managed to fix that.