Hey Troubadour - we had a very similar problem & over the past few years I was constantly maintaining foils and furler which always failed at the worst times. Decided to replace and after researching options we upgraded to reefit.
Was a useful learning for me, as I always seem to chase the fix option over the replace, but cost wise if I dared include my labor time in any of my calculations I would do different.
So, if you do choose replace here, check out Reefit (no conflict of interest here) - system is all Alloy and very well designed/ manufactured - whatdoyareakon Rumblefish?