The last Rutgerson RC750 rope clutch that I bought, was from a firm located at Hillington in Glasgow.
It might have been this firm
http://www.marineteck.com and they claim to be Rutgerson agents. They should be able to advise you of your local or nearest supplier. Alternatively go direct to Rutgerson in Sweden.
As for breaking the handles in MPD's posting, make a point of closing them up first instead of leaving them open, and that way the handles don't break so easily if you tread on them.