Thank you all for your help. It's wonderful to get such advice and what a great resource this forum is. I really want to restore the caravan to it's original splendour so it'll be a last resort, Steve sourcing alternative handles. But thank you for your suggestion. And yes, Andy it appears that the only source is Hymer, and if I want the correct handles I'll just have to wait, for how long no-one knows. Thank you for your advice on cleaning 'em up Colin, but several of them are beyond any saving as they are actually disintegrating! Thank you all for taking the time to comment.
Nick