[B10alia]

Almost certainly not. That wouldn't have been a common replacement part even when the car was new, and it's 26 years old now. A fusible link is essentially a smaller gauge wire spliced into a bigger gauge wire. I imagine that the wires aren't really that special. Someone a little more experienced with electrical stuff, maybe Bob Lincoln, would be able to point you in the right direction. As for the battery cable, there wouldn't have been a whole lot of play in that, even when new. If it's been shortened because of terminal replacement, I would remove the ends (I imagine they're bolt-on universal types, tin the wires, and then replace the ends. The solder will protect the cables from further deterioration, and next time a terminal breaks, you can just bolt a new one on to the tinned, protected wires. Some dielectric grease here wouldn't hurt, either. You may have some luck at a junkyard, depending on where you live, but I would try to put the links in myself and then protect the cables first.