General 2005 Ducato 244 rear leaf spring bushes (rubbers)

[KangarooWalk]

Gday all. I have a 2005 Fiat Ducato 244 platform chassis. The rear springs have worn bushes which need replacing, so i contacted Fiat for new bushes to find they do not make them for my vehicle, they only have the original part, ie A complete Spring and complete hanger bracket which sends the price to over $3600. Have tried companies in Australia, England and Germany without success on buying replacement Bushes, Any help or advise would be appreciated.
Thanks John H.