I agree very much with Peter's assessment. If the parts are no longer available then there is no harm done reproducing them to the same look / dimensions in order to complete a watch and have it back in original trim.

You linked a picture to your WTB the other day :
http://www.onthedash.com/Guide/_Chronographs/62.Autavia/a.Manual--Screw-Back_Case/1st_Execution_Screw-Back_Case/i.2nd_Exec_Dial_and_Hands_(2446)/21Aut24461st2nd.jpg

I hope you are aware that this execution of the Autavia has different dauphine hands to the earlier big registers version. They are thinner and the lume filled area is a different shape.
I wish you luck in both your hunt for originals and the potential production of re-make hands.

Cheers - Darren