Replacement Sonus Faber grille strings?


Hi guys, the grille and stand strings on my Sonus Faber Guaneri Evolution speakers are beginning to sag.  While I know its a straight forward task to retension the grille strings, I am just thinking that at some point I will need to replace the strings. The stand strings look a bit more difficult as it will require me to dismantle the stand.  

Of course I have no intention of paying the ridiculous prices SF wants to charge me.  So does anyone know of a source for the string?
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They are fabric\elastic try the wetting them, and then pop them in the dryer, they just need a little shrinkage, what have you got to loose.

Cheers George  
I resorted to just cutting off the little piece of metal at the bottoms of each string and re-knotting them as mentioned above.  No way I am paying $1000 to have these redone.  In the meantime I will check out the various replacement options listed above.
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