SD.. I'm sorry my "Marine English" is poor as you can see... I struggle to make myself understood, I'm from Mexico and do my best, but marine parts are tougher...
Not a problem, Alecs. I wish my Spanish, or any other non-English language, was as good as your English
That being said: For God's sake, whatever you do, don't
call a block or sheave a "pulley!"
Just to keep on the original post theme... zz4, if your head sail furler is compromised why just not rig your boat in the original set up?
He doesn't have a furler. He's got a Tuff Luff headsail track system. It has two tracks in which a bolt rope rides. The advantage is primarily for racing, as you can raise a second headsail inside the one that's already up, then, after the tack, drop the old sail. This way you always have a headsail up.
The disadvantage to that system is that, as you drop the headsail, nothing's holding the luff on the boat. More difficult when you're short-handed and have only one person on the foredeck gathering-up the sail.
To change to a "traditional" hanked-on system, he'd have to have hanks installed on all his headsails.