If I'm not mistaken, 303 is working on producing new handles.
His initial idea was to make new handles that would go better with his AluFace's and Polface's than the original handle but I guess they could just as well be bought as spares.

Maybe you can PM him and ask him what the status is on the handles.
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Riocar 80gig S/N : 010101580 red
Riocar 80gig (010102106) - backup