Guys, thanks for the advices. I am inclined of going on for a while with this one as well. The thing is that the chain is not a no-namer... EK is quite well regarded, at least in the States. And was counting on him getting me home. Well, no problem, as long as we are OK and it will not break on us, is still fine.
Last night I've asked a guy in Chile in Punta Arenas (~700 kilometers from us) and he said it would take 48 hours to get the set from Santiago (and I do not know the price yet).
Also I've asked an Argentinian friend and he will try to find today if I have better chances going to Rio Gallegos in Argentina (~400 kilometers) for a new set.
So all in all I hope at least one of the 2 options will be OK and tomorrow we will head out that way hopping everything will be OK.
In the mean time camping and hopefully today visiting Perito Moreno Glacier as a "civilian" (meaning 80 kilometers of bus or hitchhiking. This should be fun :P)