The car was owned by Ms Duffy’s late husband and she said Derek could have it.
His ownership was challenged by classic car dealer Desmond Quinn, who contacted him in 2012 saying he had a logbook and insisting he had bought it in 1968.
Mr Quinn’s claim was this week rejected by Judge Jaqueline Linnane, who said she didn’t find his story credible.
Now Derek is planning to hit the winding roads of northern Italy.
“It’s working – the engine is running. So hopefully I’ll be able to get the bodywork done by next summer and then I’m hoping to do the Mille Miglia in Italy. I’d love to do it in this car, it’d be fabulous,” he said.