I don't know what needs to be translated from P5 into P6.
My copy of P5, since neither hair nor cloth worked all that well, is still installed but never used (at least very little). but I'm sure that SOMETHING will need translating on that part... and that one will be good too... (not of use for me tough).
It's just good that the material room works better with python now...
Now an Idea.. if Gradient bump does not render in Firefly (manual says... ) what about an option to "copy" the nodes.. so one can still use the p4 renderer AND firefly.
I hope you put that script for free... no dough since P6