Yes I'm down the Huon too.
Early Fiats were copies of Cats and some parts are interchangeable.
Early Fiat crawlers were almost as good as Cats..later ones eg Fiat Alllis gradually lost their way. Many were sold in Aus esp smaller orchid units and they performed v well.
Talk to David Tillyard out at Brighton..he's helped with a Fiat rebuild a couple years ago and might be able to get or match parts. Otherwise you'll be sourcing from OS I suspect.
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